Scan range in spectrum

Update README.md
Spectrum analyzer, more frequency steps
2023-12-19 18:25:45 +01:00 · 2023-12-19 17:37:24 +01:00 · 2023-12-19 03:08:18 +01:00 · 2023-12-18 17:12:33 +01:00 · 2023-12-18 15:27:31 +01:00 · 2023-12-18 15:23:02 +01:00
40 changed files with 777 additions and 615 deletions
--- a/110
+++ b/110
@@ -4,51 +4,51 @@
 # 1 = enable

 # ---- COMPILER/LINKER OPTIONS ----
-ENABLE_CLANG                  := 0
-ENABLE_SWD                    := 0
-ENABLE_OVERLAY                := 0
-ENABLE_LTO                    := 1
+ENABLE_CLANG                  ?= 0
+ENABLE_SWD                    ?= 0
+ENABLE_OVERLAY                ?= 0
+ENABLE_LTO                    ?= 1

 # ---- STOCK QUANSHENG FERATURES ----
-ENABLE_UART                   := 1
-ENABLE_AIRCOPY                := 0
-ENABLE_FMRADIO                := 1
-ENABLE_NOAA                   := 0
-ENABLE_VOICE                  := 0
-ENABLE_VOX                    := 1
-ENABLE_ALARM                  := 0
-ENABLE_TX1750                 := 0
-ENABLE_PWRON_PASSWORD         := 0
-ENABLE_DTMF_CALLING           := 1
-ENABLE_FLASHLIGHT             := 1
+ENABLE_UART                   ?= 1
+ENABLE_AIRCOPY                ?= 0
+ENABLE_FMRADIO                ?= 1
+ENABLE_NOAA                   ?= 0
+ENABLE_VOICE                  ?= 0
+ENABLE_VOX                    ?= 1
+ENABLE_ALARM                  ?= 0
+ENABLE_TX1750                 ?= 0
+ENABLE_PWRON_PASSWORD         ?= 0
+ENABLE_DTMF_CALLING           ?= 1
+ENABLE_FLASHLIGHT             ?= 1

 # ---- CUSTOM MODS ----
-ENABLE_BIG_FREQ               := 1
-ENABLE_SMALL_BOLD             := 1
-ENABLE_KEEP_MEM_NAME          := 1
-ENABLE_WIDE_RX                := 1
-ENABLE_TX_WHEN_AM             := 0
-ENABLE_F_CAL_MENU             := 0
-ENABLE_CTCSS_TAIL_PHASE_SHIFT := 0
-ENABLE_BOOT_BEEPS             := 0
-ENABLE_SHOW_CHARGE_LEVEL      := 0
-ENABLE_REVERSE_BAT_SYMBOL     := 0
-ENABLE_NO_CODE_SCAN_TIMEOUT   := 1
-ENABLE_AM_FIX                 := 1
-ENABLE_SQUELCH_MORE_SENSITIVE := 1
-ENABLE_FASTER_CHANNEL_SCAN    := 1
-ENABLE_RSSI_BAR               := 1
-ENABLE_AUDIO_BAR              := 1
-ENABLE_COPY_CHAN_TO_VFO       := 1
-ENABLE_SPECTRUM               := 1
-ENABLE_REDUCE_LOW_MID_TX_POWER:= 0
-ENABLE_BYP_RAW_DEMODULATORS   := 0
-ENABLE_BLMIN_TMP_OFF          := 0
-ENABLE_SCAN_RANGES            := 1
+ENABLE_BIG_FREQ               ?= 1
+ENABLE_SMALL_BOLD             ?= 1
+ENABLE_KEEP_MEM_NAME          ?= 1
+ENABLE_WIDE_RX                ?= 1
+ENABLE_TX_WHEN_AM             ?= 0
+ENABLE_F_CAL_MENU             ?= 0
+ENABLE_CTCSS_TAIL_PHASE_SHIFT ?= 0
+ENABLE_BOOT_BEEPS             ?= 0
+ENABLE_SHOW_CHARGE_LEVEL      ?= 0
+ENABLE_REVERSE_BAT_SYMBOL     ?= 0
+ENABLE_NO_CODE_SCAN_TIMEOUT   ?= 1
+ENABLE_AM_FIX                 ?= 1
+ENABLE_SQUELCH_MORE_SENSITIVE ?= 1
+ENABLE_FASTER_CHANNEL_SCAN    ?= 1
+ENABLE_RSSI_BAR               ?= 1
+ENABLE_AUDIO_BAR              ?= 1
+ENABLE_COPY_CHAN_TO_VFO       ?= 1
+ENABLE_SPECTRUM               ?= 1
+ENABLE_REDUCE_LOW_MID_TX_POWER?= 0
+ENABLE_BYP_RAW_DEMODULATORS   ?= 0
+ENABLE_BLMIN_TMP_OFF          ?= 0
+ENABLE_SCAN_RANGES            ?= 1

 # ---- DEBUGGING ----
-ENABLE_AM_FIX_SHOW_DATA       := 0
-ENABLE_AGC_SHOW_DATA          := 0
+ENABLE_AM_FIX_SHOW_DATA       ?= 0
+ENABLE_AGC_SHOW_DATA          ?= 0

 #############################################################

@@ -167,24 +167,18 @@ OBJS += ui/welcome.o
 OBJS += version.o
 OBJS += main.o

-ifeq ($(OS), Windows_NT)
-	TOP := $(dir $(realpath $(lastword $(MAKEFILE_LIST))))
-else
-	TOP := $(shell pwd)
-endif
-
-ifdef OS # windows
-   RM = del /Q
-   FixPath = $(subst /,\,$1)
-   WHERE = where
-   NULL_OUTPUT = nul
+ifeq ($(OS), Windows_NT) # windows
+    TOP := $(dir $(realpath $(lastword $(MAKEFILE_LIST))))
+    RM = del /Q
+    FixPath = $(subst /,\,$1)
+    WHERE = where
+    NULL_OUTPUT = nul
 else # unix
-   ifeq ($(shell uname), Linux)
-      RM = rm -f
-      FixPath = $1
-	  WHERE = which
-	  NULL_OUTPUT = /dev/null
-   endif
+    TOP := $(shell pwd)
+    RM = rm -f
+    FixPath = $1
+    WHERE = which
+    NULL_OUTPUT = /dev/null	
 endif

 AS = arm-none-eabi-gcc
@@ -204,11 +198,11 @@ endif
 OBJCOPY = arm-none-eabi-objcopy
 SIZE = arm-none-eabi-size

-AUTHOR_STRING := EGZUMER
+AUTHOR_STRING ?= EGZUMER
 # the user might not have/want git installed
 # can set own version string here (max 7 chars)
 ifneq (, $(shell $(WHERE) git))
-	VERSION_STRING := $(shell git describe --tags --exact-match 2>$(NULL_OUTPUT))
+	VERSION_STRING ?= $(shell git describe --tags --exact-match 2>$(NULL_OUTPUT))
 	ifeq (, $(VERSION_STRING))
    	VERSION_STRING := $(shell git rev-parse --short HEAD)
 	endif
--- a/README.md
+++ b/README.md
@@ -1,10 +1,7 @@
-# Open re-implementation of the Quansheng UV-K5 v2.1.27 firmware
+# Open re-implementation of the Quansheng UV-K5/K6/5R v2.1.27 firmware

-This repository is a merge of [OneOfEleven custom firmware](https://github.com/OneOfEleven/uv-k5-firmware-custom) with [fagci spectrum analizer](https://github.com/fagci/uv-k5-firmware-fagci-mod/tree/refactor) plus my few changes.
-
-All is a cloned and customized version of DualTachyon's open firmware found here ..
-
-https://github.com/DualTachyon/uv-k5-firmware .. a cool achievement !
+This repository is a merge of [OneOfEleven custom firmware](https://github.com/OneOfEleven/uv-k5-firmware-custom) with [fagci spectrum analizer](https://github.com/fagci/uv-k5-firmware-fagci-mod/tree/refactor) plus my few changes.<br>
+All is a cloned and customized version of DualTachyon's open firmware found [here](https://github.com/DualTachyon/uv-k5-firmware) ... a cool achievement !

 > [!WARNING]  
 > Use this firmware at your own risk (entirely). There is absolutely no guarantee that it will work in any way shape or form on your radio(s), it may even brick your radio(s), in which case, you'd need to buy another radio.
@@ -19,6 +16,7 @@ Anyway, have fun.
 * [Compiler](#compiler)
 * [Building](#building)
 * [Credits](#credits)
+* [Other sources of information](#other-sources-of-information)
 * [License](#license)
 * [Example changes/updates](#example-changesupdates)

@@ -47,24 +45,15 @@ Anyway, have fun.
   * more configurable button functions
   * long press MENU as another configurable button
   * better DCS/CTCSS scanning in the menu (`* SCAN` while in RX DCS/CTCSS menu item)
-   * Piotr022 s-meter style
+   * Piotr022 style s-meter
   * restore initial freq/channel when scanning stopped with EXIT, remember last found transmission with MENU button
   * reordered and renamed menu entries
   * LCD interference crash fix
+   * many others...

 ## Manual

-* [Radio operation](https://github.com/egzumer/uv-k5-firmware-custom/wiki/Radio-operation)
-
-* [Menu](https://github.com/egzumer/uv-k5-firmware-custom/wiki/Menu)
-
-* [Button functions](https://github.com/egzumer/uv-k5-firmware-custom/wiki/Button-functions)
-
-* [Spectrum analyzer](https://github.com/egzumer/uv-k5-firmware-custom/wiki/Spectrum-analyzer)
-
-* [Flashing the firmware](https://github.com/egzumer/uv-k5-firmware-custom/wiki/Flashing-the-firmware)
-
-<img src="images/main.jpg" width=300 /><img src="images/spectrum.jpg" width=300 /><img src="images/audiobar.jpg" width=300 /><img src="images/rssibar.jpg" width=300 />
+Up to date manual is available in the [Wiki section](https://github.com/egzumer/uv-k5-firmware-custom/wiki)

 ## Radio performance

@@ -143,10 +132,31 @@ You can get it from: https://releases.llvm.org/download.html

 ## Building

+### Github Codespace build method
+
+This is the least demanding option as you don't have to install enything on your computer. All you need is Github account.
+
+1. Go to https://github.com/egzumer/uv-k5-firmware-custom
+1. Click green `Code` button
+1. Change tab from `Local` to `Codespace`
+1. Click green `Create codespace on main` button
+
+<img src="images/codespace1.png" width=700 />
+
+5. Open `Makefile`
+1. Edit build options, save `Makefile` changes
+1. Run `./compile-with-docker.sh` in terminal window
+1. Open folder `compiled-firmware`
+1. Right click `firmware.packed.bin`
+1. Click `Download`, now you should have a firmware on your computer that you can proceed to flash on your radio. You can use [online flasher](https://egzumer.github.io/uvtools)
+
+<img src="images/codespace2.png" width=700 />
+
+### Docker build method
+
 If you have docker installed you can use [compile-with-docker.bat](./compile-with-docker.bat) (Windows) or [compile-with-docker.sh](./compile-with-docker.sh) (Linux/Mac), the output files are created in `compiled-firmware` folder. This method gives significantly smaller binaries, I've seen differences up to 1kb, so it can fit more functionalities this way. The challenge can be (or not) installing docker itself.

-
-To compile directly in windows:
+### Windows environment build method

 1. Open windows command line and run:
    ```
@@ -191,6 +201,11 @@ Many thanks to various people on Telegram for putting up with me during this eff
 * @d1ced95
 * and others I forget

+## Other sources of information
+
+[ludwich66 - Quansheng UV-K5 Wiki](https://github.com/ludwich66/Quansheng_UV-K5_Wiki/wiki)<br>
+[amnemonic - tools and sources of information](https://github.com/amnemonic/Quansheng_UV-K5_Firmware)
+
 ## License

 Copyright 2023 Dual Tachyon
--- a/app/action.c
+++ b/app/action.c
@@ -57,7 +57,6 @@ inline static void ACTION_ScanRestart() { ACTION_Scan(true); };

 void (*action_opt_table[])(void) = {
 	[ACTION_OPT_NONE] = &FUNCTION_NOP,
-	[ACTION_OPT_FLASHLIGHT] = &ACTION_FlashLight,
 	[ACTION_OPT_POWER] = &ACTION_Power,
 	[ACTION_OPT_MONITOR] = &ACTION_Monitor,
 	[ACTION_OPT_SCAN] = &ACTION_ScanRestart,
@@ -66,6 +65,12 @@ void (*action_opt_table[])(void) = {
 	[ACTION_OPT_VFO_MR] = &COMMON_SwitchVFOMode,
 	[ACTION_OPT_SWITCH_DEMODUL] = &ACTION_SwitchDemodul,

+#ifdef ENABLE_FLASHLIGHT
+	[ACTION_OPT_FLASHLIGHT] = &ACTION_FlashLight,
+#else
+	[ACTION_OPT_FLASHLIGHT] = &FUNCTION_NOP,
+#endif
+
 #ifdef ENABLE_VOX
 	[ACTION_OPT_VOX] = &ACTION_Vox,
 #else
--- a/app/app.c
+++ b/app/app.c
@@ -37,7 +37,9 @@
 #include "app/main.h"
 #include "app/menu.h"
 #include "app/scanner.h"
-#include "app/uart.h"
+#ifdef ENABLE_UART
+	#include "app/uart.h"
+#endif
 #include "ARMCM0.h"
 #include "audio.h"
 #include "board.h"
@@ -70,8 +72,6 @@
 #include "ui/status.h"
 #include "ui/ui.h"

-#include "debugging.h"
-
 static void ProcessKey(KEY_Code_t Key, bool bKeyPressed, bool bKeyHeld);


@@ -194,8 +194,8 @@ static void HandleIncoming(void)
 		gFoundCTCSS = false;
 	}

-	if (g_CDCSS_Lost && gCDCSSCodeType == CDCSS_POSITIVE_CODE 
-	    && (gCurrentCodeType == CODE_TYPE_DIGITAL || gCurrentCodeType == CODE_TYPE_REVERSE_DIGITAL)) 
+	if (g_CDCSS_Lost && gCDCSSCodeType == CDCSS_POSITIVE_CODE
+	    && (gCurrentCodeType == CODE_TYPE_DIGITAL || gCurrentCodeType == CODE_TYPE_REVERSE_DIGITAL))
 	{
 		gFoundCDCSS = false;
 	}
@@ -936,17 +936,17 @@ void APP_Update(void)
 			gEeprom.BATTERY_SAVE == 0         ||
 		    gScanStateDir != SCAN_OFF         ||
 		    gCssBackgroundScan                ||
-		    gScreenToDisplay != DISPLAY_MAIN  
+		    gScreenToDisplay != DISPLAY_MAIN
 #ifdef ENABLE_FMRADIO
 			|| gFmRadioMode
 #endif
-#ifdef ENABLE_DTMF_CALLING			
+#ifdef ENABLE_DTMF_CALLING
 			|| gDTMF_CallState != DTMF_CALL_STATE_NONE
 #endif
 		){
 			gBatterySaveCountdown_10ms   = battery_save_count_10ms;
 		}
-		else 
+		else
 #ifdef ENABLE_NOAA
 		if ((!IS_NOAA_CHANNEL(gEeprom.ScreenChannel[0]) && !IS_NOAA_CHANNEL(gEeprom.ScreenChannel[1])) || !gIsNoaaMode)
 #endif
@@ -965,12 +965,12 @@ void APP_Update(void)
 	}


-	if (gPowerSaveCountdownExpired && gCurrentFunction == FUNCTION_POWER_SAVE 
-#ifdef ENABLE_VOICE	
+	if (gPowerSaveCountdownExpired && gCurrentFunction == FUNCTION_POWER_SAVE
+#ifdef ENABLE_VOICE
 		&& gVoiceWriteIndex == 0
-#endif		
+#endif
 	)
-	{	
+	{
 		static bool goToSleep;
 		// wake up, enable RX then go back to sleep
 		if (gRxIdleMode)
@@ -1025,13 +1025,13 @@ void APP_Update(void)
 static void CheckKeys(void)
 {

-	if (0 
+	if (0
 #ifdef ENABLE_DTMF_CALLING
-	|| gSetting_KILLED 
-#endif	
-#ifdef ENABLE_AIRCOPY	
+	|| gSetting_KILLED
+#endif
+#ifdef ENABLE_AIRCOPY
 	|| (gScreenToDisplay == DISPLAY_AIRCOPY && gAircopyState != AIRCOPY_READY)
-#endif	
+#endif
 	)
 		return;

@@ -1074,7 +1074,7 @@ static void CheckKeys(void)
 		boot_counter_10ms = 0;   // cancel boot screen/beeps if any key pressed

 	if (gKeyReading0 != Key) // new key pressed
-	{	
+	{

 		if (gKeyReading0 != KEY_INVALID && Key != KEY_INVALID)
 			ProcessKey(gKeyReading1, false, gKeyBeingHeld);  // key pressed without releasing previous key
@@ -1087,7 +1087,7 @@ static void CheckKeys(void)
 	gDebounceCounter++;

 	if (gDebounceCounter == key_debounce_10ms) // debounced new key pressed
-	{	
+	{
 		if (Key == KEY_INVALID) //all non PTT keys released
 		{
 			if (gKeyReading1 != KEY_INVALID) // some button was pressed before
@@ -1110,7 +1110,7 @@ static void CheckKeys(void)
 		return;

 	if (gDebounceCounter == key_repeat_delay_10ms) //initial key repeat with longer delay
-	{	
+	{
 		if (Key != KEY_PTT)
 		{
 			gKeyBeingHeld = true;
@@ -1118,7 +1118,7 @@ static void CheckKeys(void)
 		}
 	}
 	else //subsequent fast key repeats
-	{	
+	{
 		if (Key == KEY_UP || Key == KEY_DOWN) // fast key repeats for up/down buttons
 		{
 			gKeyBeingHeld = true;
@@ -1135,25 +1135,28 @@ static void CheckKeys(void)

 void APP_TimeSlice10ms(void)
 {
+	gNextTimeslice = false;
 	gFlashLightBlinkCounter++;

-	#ifdef ENABLE_BOOT_BEEPS
-		if (boot_counter_10ms > 0)
-			if ((boot_counter_10ms % 25) == 0)
-				AUDIO_PlayBeep(BEEP_880HZ_40MS_OPTIONAL);
-	#endif
+#ifdef ENABLE_BOOT_BEEPS
+	if (boot_counter_10ms > 0 && (boot_counter_10ms % 25) == 0) {
+		AUDIO_PlayBeep(BEEP_880HZ_40MS_OPTIONAL);
+	}
+#endif

-	#ifdef ENABLE_AM_FIX
-		if (gRxVfo->Modulation == MODULATION_AM)
-			AM_fix_10ms(gEeprom.RX_VFO);
-	#endif
+#ifdef ENABLE_AM_FIX
+	if (gRxVfo->Modulation == MODULATION_AM) {
+		AM_fix_10ms(gEeprom.RX_VFO);
+	}
+#endif

-	if (UART_IsCommandAvailable())
-	{
+#ifdef ENABLE_UART
+	if (UART_IsCommandAvailable()) {
 		__disable_irq();
 		UART_HandleCommand();
 		__enable_irq();
 	}
+#endif

 	if (gReducedService)
 		return;
@@ -1276,9 +1279,9 @@ void APP_TimeSlice10ms(void)
 	}
 #endif

-	
+
 	SCANNER_TimeSlice10ms();
-	
+
 #ifdef ENABLE_AIRCOPY
 	if (gScreenToDisplay == DISPLAY_AIRCOPY && gAircopyState == AIRCOPY_TRANSFER && gAirCopyIsSendMode == 1)
 	{
@@ -1315,6 +1318,7 @@ void cancelUserInputModes(void)
 // this is called once every 500ms
 void APP_TimeSlice500ms(void)
 {
+	gNextTimeslice_500ms = false;
 	bool exit_menu = false;

 	// Skipped authentic device check
@@ -1419,7 +1423,7 @@ void APP_TimeSlice500ms(void)
 			BATTERY_GetReadings(true);
 		}
 	}
-	
+
 	// regular display updates (once every 2 sec) - if need be
 	if ((gBatteryCheckCounter & 3) == 0)
 	{
@@ -1431,23 +1435,22 @@ void APP_TimeSlice500ms(void)
 		#endif
 	}

-	#ifdef ENABLE_FMRADIO
-		if ((gFM_ScanState == FM_SCAN_OFF || gAskToSave) && !gCssBackgroundScan)
-	#else
-		if (!gCssBackgroundScan)
-	#endif
-	{
-		#ifdef ENABLE_AIRCOPY
-			if (gScanStateDir == SCAN_OFF && gScreenToDisplay != DISPLAY_AIRCOPY && !SCANNER_IsScanning())
-		#else
-			if (gScanStateDir == SCAN_OFF && !SCANNER_IsScanning())
-		#endif
-		{
-			if (gEeprom.AUTO_KEYPAD_LOCK && gKeyLockCountdown > 0 && !gDTMF_InputMode && gScreenToDisplay != DISPLAY_MENU)
-			{
-				if (--gKeyLockCountdown == 0)
+	if (!gCssBackgroundScan
+#ifdef ENABLE_FMRADIO
+		&& (gFM_ScanState == FM_SCAN_OFF || gAskToSave)
+#endif
+	) {
+		if (gScanStateDir == SCAN_OFF && !SCANNER_IsScanning()
+#ifdef ENABLE_AIRCOPY
+			&& gScreenToDisplay != DISPLAY_AIRCOPY
+#endif
+		) {
+			if (gEeprom.AUTO_KEYPAD_LOCK && gKeyLockCountdown > 0 && !gDTMF_InputMode && gScreenToDisplay != DISPLAY_MENU) {
+				if (--gKeyLockCountdown == 0) {
 					gEeprom.KEY_LOCK = true;     // lock the keyboard
-				gUpdateStatus = true;            // lock symbol needs showing
+					gUpdateStatus = true;            // lock symbol needs showing
+				}
+
 			}

 			if (exit_menu)
@@ -1483,25 +1486,25 @@ void APP_TimeSlice500ms(void)
 				gUpdateStatus    = true;
 				gUpdateDisplay   = true;

-				{
-					GUI_DisplayType_t disp = DISPLAY_INVALID;
+				GUI_DisplayType_t disp = DISPLAY_INVALID;

-					#ifdef ENABLE_FMRADIO
-						if (gFmRadioMode && ! FUNCTION_IsRx()) {
-							disp = DISPLAY_FM;
-						}
-					#endif
-
-					if (disp == DISPLAY_INVALID)
-					{
-#ifndef ENABLE_NO_CODE_SCAN_TIMEOUT
-						if (!SCANNER_IsScanning())
+#ifdef ENABLE_FMRADIO
+				if (gFmRadioMode && ! FUNCTION_IsRx()) {
+					disp = DISPLAY_FM;
+				}
 #endif
-							disp = DISPLAY_MAIN;
-					}

-					if (disp != DISPLAY_INVALID)
-						GUI_SelectNextDisplay(disp);
+				if (disp == DISPLAY_INVALID) {
+#ifndef ENABLE_NO_CODE_SCAN_TIMEOUT
+					if (!SCANNER_IsScanning())
+#endif
+					{
+						disp = DISPLAY_MAIN;
+					}
+				}
+
+				if (disp != DISPLAY_INVALID) {
+					GUI_SelectNextDisplay(disp);
 				}
 			}
 		}
@@ -1518,7 +1521,7 @@ void APP_TimeSlice500ms(void)
 				FM_Start();
 				GUI_SelectNextDisplay(DISPLAY_FM);
 			}
-#endif				
+#endif
 		}
 	}

@@ -1649,7 +1652,7 @@ static void ProcessKey(KEY_Code_t Key, bool bKeyPressed, bool bKeyHeld)
 				!(Key == KEY_PTT && !(gSetting_backlight_on_tx_rx & BACKLIGHT_ON_TR_TX))
 				// not in the backlight menu
 				&& !(gScreenToDisplay == DISPLAY_MENU && ( m == MENU_ABR || m == MENU_ABR_MAX || m == MENU_ABR_MIN))
-			) 
+			)
 		{
 			BACKLIGHT_TurnOn();
 		}
@@ -1667,7 +1670,7 @@ static void ProcessKey(KEY_Code_t Key, bool bKeyPressed, bool bKeyHeld)

 			// cancel user input
 			cancelUserInputModes();
-			
+
 			if (gMonitor)
 				ACTION_Monitor(); //turn off the monitor
 #ifdef ENABLE_SCAN_RANGES
@@ -1705,7 +1708,7 @@ static void ProcessKey(KEY_Code_t Key, bool bKeyPressed, bool bKeyHeld)
 			gUpdateDisplay = true;
 			AUDIO_PlayBeep(BEEP_1KHZ_60MS_OPTIONAL);
 			return;
-		}		
+		}

 		if (Key == KEY_F)
 		{	// function/key-lock key
@@ -1779,100 +1782,98 @@ static void ProcessKey(KEY_Code_t Key, bool bKeyPressed, bool bKeyHeld)
 		gUpdateStatus   = true;
 	}

-	if (!bFlag)
-	{
-		if (gCurrentFunction == FUNCTION_TRANSMIT)
-		{	// transmitting
+	if (bFlag) {
+		goto Skip;
+	}

+	if (gCurrentFunction == FUNCTION_TRANSMIT) {
 #if defined(ENABLE_ALARM) || defined(ENABLE_TX1750)
-			if (gAlarmState == ALARM_STATE_OFF)
-#endif
-			{
-				char Code;
-
-				if (Key == KEY_PTT)
-				{
-					GENERIC_Key_PTT(bKeyPressed);
-					goto Skip;
-				}
-
-				if (Key == KEY_SIDE2)
-				{	// transmit 1750Hz tone
-					Code = 0xFE;
-				}
-				else
-				{
-					Code = DTMF_GetCharacter(Key - KEY_0);
-					if (Code == 0xFF)
-						goto Skip;
-
-					// transmit DTMF keys
-				}
-
-				if (!bKeyPressed || bKeyHeld)
-				{
-					if (!bKeyPressed)
-					{
-						AUDIO_AudioPathOff();
-
-						gEnableSpeaker = false;
-
-						BK4819_ExitDTMF_TX(false);
-
-						if (gCurrentVfo->SCRAMBLING_TYPE == 0 || !gSetting_ScrambleEnable)
-							BK4819_DisableScramble();
-						else
-							BK4819_EnableScramble(gCurrentVfo->SCRAMBLING_TYPE - 1);
-					}
-				}
-				else
-				{
-					if (gEeprom.DTMF_SIDE_TONE)
-					{	// user will here the DTMF tones in speaker
-						AUDIO_AudioPathOn();
-						gEnableSpeaker = true;
-					}
-
-					BK4819_DisableScramble();
-
-					if (Code == 0xFE)
-						BK4819_TransmitTone(gEeprom.DTMF_SIDE_TONE, 1750);
-					else
-						BK4819_PlayDTMFEx(gEeprom.DTMF_SIDE_TONE, Code);
-				}
-			}
-#if defined(ENABLE_ALARM) || defined(ENABLE_TX1750)
-			else if ((!bKeyHeld && bKeyPressed) || (gAlarmState == ALARM_STATE_TX1750 && bKeyHeld && !bKeyPressed))
-			{
-				ALARM_Off();
-
-				if (gEeprom.REPEATER_TAIL_TONE_ELIMINATION == 0)
-					FUNCTION_Select(FUNCTION_FOREGROUND);
-				else
-					gRTTECountdown = gEeprom.REPEATER_TAIL_TONE_ELIMINATION * 10;
-
-				if (Key == KEY_PTT)
-					gPttWasPressed  = true;
-				else
-				if (!bKeyHeld)
-					gPttWasReleased = true;
-			}
-#endif
-		}
-		else if (Key != KEY_SIDE1 && Key != KEY_SIDE2 && gScreenToDisplay != DISPLAY_INVALID) {
-			ProcessKeysFunctions[gScreenToDisplay](Key, bKeyPressed, bKeyHeld);
-		}
-		else
-#ifdef ENABLE_AIRCOPY
-		if (!SCANNER_IsScanning() && gScreenToDisplay != DISPLAY_AIRCOPY)
-#else
-		if (!SCANNER_IsScanning())
+		if (gAlarmState == ALARM_STATE_OFF)
 #endif
 		{
-			ACTION_Handle(Key, bKeyPressed, bKeyHeld);
+			char Code;
+
+			if (Key == KEY_PTT)
+			{
+				GENERIC_Key_PTT(bKeyPressed);
+				goto Skip;
+			}
+
+			if (Key == KEY_SIDE2)
+			{	// transmit 1750Hz tone
+				Code = 0xFE;
+			}
+			else
+			{
+
+				Code = DTMF_GetCharacter(Key - KEY_0);
+				if (Code == 0xFF)
+					goto Skip;
+
+				// transmit DTMF keys
+			}
+
+			if (!bKeyPressed || bKeyHeld)
+			{
+				if (!bKeyPressed)
+				{
+					AUDIO_AudioPathOff();
+
+					gEnableSpeaker = false;
+
+					BK4819_ExitDTMF_TX(false);
+
+					if (gCurrentVfo->SCRAMBLING_TYPE == 0 || !gSetting_ScrambleEnable)
+						BK4819_DisableScramble();
+					else
+						BK4819_EnableScramble(gCurrentVfo->SCRAMBLING_TYPE - 1);
+				}
+			}
+			else
+			{
+				if (gEeprom.DTMF_SIDE_TONE)
+				{	// user will here the DTMF tones in speaker
+					AUDIO_AudioPathOn();
+					gEnableSpeaker = true;
+				}
+
+				BK4819_DisableScramble();
+
+				if (Code == 0xFE)
+					BK4819_TransmitTone(gEeprom.DTMF_SIDE_TONE, 1750);
+				else
+					BK4819_PlayDTMFEx(gEeprom.DTMF_SIDE_TONE, Code);
+			}
 		}
-		else if (!bKeyHeld && bKeyPressed)
-			gBeepToPlay = BEEP_500HZ_60MS_DOUBLE_BEEP_OPTIONAL;
+#if defined(ENABLE_ALARM) || defined(ENABLE_TX1750)
+		else if ((!bKeyHeld && bKeyPressed) || (gAlarmState == ALARM_STATE_TX1750 && bKeyHeld && !bKeyPressed)) {
+			ALARM_Off();
+
+			if (gEeprom.REPEATER_TAIL_TONE_ELIMINATION == 0)
+				FUNCTION_Select(FUNCTION_FOREGROUND);
+			else
+				gRTTECountdown = gEeprom.REPEATER_TAIL_TONE_ELIMINATION * 10;
+
+			if (Key == KEY_PTT)
+				gPttWasPressed  = true;
+			else
+			if (!bKeyHeld)
+				gPttWasReleased = true;
+		}
+#endif
+	}
+	else if (Key != KEY_SIDE1 && Key != KEY_SIDE2 && gScreenToDisplay != DISPLAY_INVALID) {
+		ProcessKeysFunctions[gScreenToDisplay](Key, bKeyPressed, bKeyHeld);
+	}
+	else if (!SCANNER_IsScanning()
+#ifdef ENABLE_AIRCOPY
+			&& gScreenToDisplay != DISPLAY_AIRCOPY
+#endif
+	) {
+		ACTION_Handle(Key, bKeyPressed, bKeyHeld);
+	}
+	else if (!bKeyHeld && bKeyPressed) {
+		gBeepToPlay = BEEP_500HZ_60MS_DOUBLE_BEEP_OPTIONAL;
 	}

 Skip:
@@ -1902,24 +1903,24 @@ Skip:
 		gUpdateStatus        = true;
 	}

-	#ifdef ENABLE_FMRADIO
-		if (gRequestSaveFM)
-		{
-			if (!bKeyHeld)
-				SETTINGS_SaveFM();
-			else
-				gFlagSaveFM = true;
-			gRequestSaveFM = false;
-		}
-	#endif
+#ifdef ENABLE_FMRADIO
+	if (gRequestSaveFM)
+	{
+		gRequestSaveFM = false;
+		if (!bKeyHeld)
+			SETTINGS_SaveFM();
+		else
+			gFlagSaveFM = true;
+	}
+#endif

 	if (gRequestSaveVFO)
 	{
+		gRequestSaveVFO = false;
 		if (!bKeyHeld)
 			SETTINGS_SaveVfoIndices();
 		else
 			gFlagSaveVfo = true;
-		gRequestSaveVFO = false;
 	}

 	if (gRequestSaveChannel > 0) // TODO: remove the gRequestSaveChannel, why use global variable for that??
--- a/app/chFrScanner.c
+++ b/app/chFrScanner.c
@@ -11,6 +11,7 @@ bool              gScanPauseMode;

 #ifdef ENABLE_SCAN_RANGES
 uint32_t          gScanRangeStart;
+uint32_t          gScanRangeStop;
 #endif

 typedef enum {
@@ -157,9 +158,7 @@ static void NextFreqChannel(void)
 {
 #ifdef ENABLE_SCAN_RANGES
 	if(gScanRangeStart) {
-		uint32_t start = gScanRangeStart;
-		uint32_t end = gEeprom.VfoInfo[(gEeprom.TX_VFO+1)%2].freq_config_RX.Frequency;
-		gRxVfo->freq_config_RX.Frequency = APP_SetFreqByStepAndLimits(gRxVfo, gScanStateDir, MIN(start, end), MAX(start, end));
+		gRxVfo->freq_config_RX.Frequency = APP_SetFreqByStepAndLimits(gRxVfo, gScanStateDir, gScanRangeStart, gScanRangeStop);
 	}
 	else
 #endif
--- a/app/chFrScanner.h
+++ b/app/chFrScanner.h
@@ -12,6 +12,7 @@ extern bool              gScanPauseMode;

 #ifdef ENABLE_SCAN_RANGES
 extern uint32_t          gScanRangeStart;
+extern uint32_t          gScanRangeStop;
 #endif

 void CHFRSCANNER_Found(void);
--- a/app/dtmf.c
+++ b/app/dtmf.c
@@ -109,7 +109,7 @@ bool DTMF_GetContact(const int Index, char *pContact)
 		EEPROM_ReadBuffer(0x1C00 + (Index * 16), pContact, 16);
 		i = (int)pContact[0] - ' ';
 	}
-	return (i < 0 || i >= 95) ? false : true;
+	return (i >= 0 && i < 95);
 }

 bool DTMF_FindContact(const char *pContact, char *pResult)
@@ -130,7 +130,7 @@ bool DTMF_FindContact(const char *pContact, char *pResult)

 		if (j == 3)
 		{
-			memmove(pResult, Contact, 8);
+			memcpy(pResult, Contact, 8);
 			pResult[8] = 0;
 			return true;
 		}
@@ -361,8 +361,8 @@ void DTMF_HandleRequest(void)

 			memset(gDTMF_Callee, 0, sizeof(gDTMF_Callee));
 			memset(gDTMF_Caller, 0, sizeof(gDTMF_Caller));
-			memmove(gDTMF_Callee, gDTMF_RX + Offset + 0, 3);
-			memmove(gDTMF_Caller, gDTMF_RX + Offset + 4, 3);
+			memcpy(gDTMF_Callee, gDTMF_RX + Offset + 0, 3);
+			memcpy(gDTMF_Caller, gDTMF_RX + Offset + 4, 3);

 			DTMF_clear_RX();

--- a/app/generic.c
+++ b/app/generic.c
@@ -83,7 +83,9 @@ void GENERIC_Key_F(bool bKeyPressed, bool bKeyHeld)
 	}
 	else // short pressed
 	{
+#ifdef ENABLE_FMRADIO
 		if (gScreenToDisplay != DISPLAY_FM)
+#endif
 		{
 			gBeepToPlay = BEEP_1KHZ_60MS_OPTIONAL;
 			return;
@@ -221,17 +223,24 @@ start_tx:
 	// request start TX
 	gFlagPrepareTX = true;
 	goto done;
-	
+
 cancel_tx:
 	if (gPttIsPressed)
 	{
 		gPttWasPressed = true;
 	}

-done:	
+done:
 	gPttDebounceCounter = 0;
-	if (gScreenToDisplay != DISPLAY_MENU && gRequestDisplayScreen != DISPLAY_FM)     // 1of11 .. don't close the menu
+	if (gScreenToDisplay != DISPLAY_MENU
+#ifdef ENABLE_FMRADIO
+		&& gRequestDisplayScreen != DISPLAY_FM
+#endif
+	) {
+		// 1of11 .. don't close the menu
 		gRequestDisplayScreen = DISPLAY_MAIN;
+	}
+
 	gUpdateStatus  = true;
 	gUpdateDisplay = true;
 }
--- a/app/main.c
+++ b/app/main.c
@@ -52,6 +52,9 @@ void toggle_chan_scanlist(void)
 	if(!IS_MR_CHANNEL(gTxVfo->CHANNEL_SAVE)) {
 #ifdef ENABLE_SCAN_RANGES
 		gScanRangeStart = gScanRangeStart ? 0 : gTxVfo->pRX->Frequency;
+		gScanRangeStop = gEeprom.VfoInfo[!gEeprom.TX_VFO].freq_config_RX.Frequency;
+		if(gScanRangeStart > gScanRangeStop)
+			SWAP(gScanRangeStart, gScanRangeStop);
 #endif
 		return;
 	}
@@ -622,7 +625,7 @@ static void MAIN_Key_STAR(bool bKeyPressed, bool bKeyHeld)
 		)
 		{	// start entering a DTMF string
 			gBeepToPlay = BEEP_1KHZ_60MS_OPTIONAL;
-			memmove(gDTMF_InputBox, gDTMF_String, MIN(sizeof(gDTMF_InputBox), sizeof(gDTMF_String) - 1));
+			memcpy(gDTMF_InputBox, gDTMF_String, MIN(sizeof(gDTMF_InputBox), sizeof(gDTMF_String) - 1));
 			gDTMF_InputBox_Index  = 0;
 			gDTMF_InputMode       = true;

--- a/app/menu.c
+++ b/app/menu.c
@@ -681,7 +681,7 @@ void MENU_AcceptSetting(void)
 				GUI_SelectNextDisplay(DISPLAY_MAIN);
 				gDTMF_InputMode       = true;
 				gDTMF_InputBox_Index  = 3;
-				memmove(gDTMF_InputBox, gDTMF_ID, 4);
+				memcpy(gDTMF_InputBox, gDTMF_ID, 4);
 				gRequestDisplayScreen = DISPLAY_INVALID;
 			}
 			return;
@@ -1339,6 +1339,10 @@ static void MENU_Key_EXIT(bool bKeyPressed, bool bKeyHeld)

 	if (!gCssBackgroundScan)
 	{
+		/* Backlight related menus set full brightness. Set it back to the configured value,
+		   just in case we are exiting from one of them. */
+		BACKLIGHT_TurnOn();
+
 		if (gIsInSubMenu)
 		{
 			if (gInputBoxIndex == 0 || UI_MENU_GetCurrentMenuId() != MENU_OFFSET)
@@ -1436,7 +1440,7 @@ static void MENU_Key_MENU(const bool bKeyPressed, const bool bKeyHeld)
 			edit_index = 0;  // 'edit_index' is going to be used as the cursor position

 			// make a copy so we can test for change when exiting the menu item
-			memmove(edit_original, edit, sizeof(edit_original));
+			memcpy(edit_original, edit, sizeof(edit_original));

 			return;
 		}
@@ -1624,7 +1628,10 @@ static void MENU_Key_UP_DOWN(bool bKeyPressed, bool bKeyHeld, int8_t Direction)

 		gRequestDisplayScreen = DISPLAY_MENU;

-		if (UI_MENU_GetCurrentMenuId() != MENU_ABR && gEeprom.BACKLIGHT_TIME == 0) // backlight always off and not in the backlight menu
+		if (UI_MENU_GetCurrentMenuId() != MENU_ABR
+			&& UI_MENU_GetCurrentMenuId() != MENU_ABR_MIN
+			&& UI_MENU_GetCurrentMenuId() != MENU_ABR_MAX
+			&& gEeprom.BACKLIGHT_TIME == 0) // backlight always off and not in the backlight menu
 		{
 			BACKLIGHT_TurnOff();
 		}
--- a/app/spectrum.c
+++ b/app/spectrum.c
@@ -13,10 +13,14 @@
 *     See the License for the specific language governing permissions and
 *     limitations under the License.
 */
-
 #include "app/spectrum.h"
 #include "am_fix.h"
 #include "audio.h"
+
+#ifdef ENABLE_SCAN_RANGES
+#include "chFrScanner.h"
+#endif
+
 #include "driver/backlight.h"
 #include "frequencies.h"
 #include "ui/helper.h"
@@ -53,6 +57,11 @@ PeakInfo peak;
 ScanInfo scanInfo;
 KeyboardState kbd = {KEY_INVALID, KEY_INVALID, 0};

+#ifdef ENABLE_SCAN_RANGES
+static uint16_t blacklistFreqs[15];
+static uint8_t blacklistFreqsIdx;
+#endif
+
 const char *bwOptions[] = {"  25k", "12.5k", "6.25k"};
 const uint8_t modulationTypeTuneSteps[] = {100, 50, 10};
 const uint8_t modTypeReg47Values[] = {1, 7, 5};
@@ -260,12 +269,24 @@ static void ResetPeak() {
 }

 bool IsCenterMode() { return settings.scanStepIndex < S_STEP_2_5kHz; }
-uint8_t GetStepsCount() { return 128 >> settings.stepsCount; }
+// scan step in 0.01khz
 uint16_t GetScanStep() { return scanStepValues[settings.scanStepIndex]; }
+
+uint16_t GetStepsCount() 
+{ 
+#ifdef ENABLE_SCAN_RANGES
+  if(gScanRangeStart) {
+    return (gScanRangeStop - gScanRangeStart) / GetScanStep();
+  }
+#endif
+  return 128 >> settings.stepsCount;
+}
+
 uint32_t GetBW() { return GetStepsCount() * GetScanStep(); }
 uint32_t GetFStart() {
  return IsCenterMode() ? currentFreq - (GetBW() >> 1) : currentFreq;
 }
+
 uint32_t GetFEnd() { return currentFreq + GetBW(); }

 static void TuneToPeak() {
@@ -352,6 +373,10 @@ static void ResetBlacklist() {
    if (rssiHistory[i] == RSSI_MAX_VALUE)
      rssiHistory[i] = 0;
  }
+#ifdef ENABLE_SCAN_RANGES
+  memset(blacklistFreqs, 0, sizeof(blacklistFreqs));
+  blacklistFreqsIdx = 0;
+#endif
 }

 static void RelaunchScan() {
@@ -398,7 +423,20 @@ static void UpdatePeakInfo() {
    UpdatePeakInfoForce();
 }

-static void Measure() { rssiHistory[scanInfo.i] = scanInfo.rssi = GetRssi(); }
+static void Measure() 
+{ 
+  uint16_t rssi = scanInfo.rssi = GetRssi();
+#ifdef ENABLE_SCAN_RANGES  
+  if(scanInfo.measurementsCount > 128) {
+    uint8_t idx = (uint32_t)ARRAY_SIZE(rssiHistory) * 1000 / scanInfo.measurementsCount * scanInfo.i / 1000;
+    if(rssiHistory[idx] < rssi || isListening) 
+      rssiHistory[idx] = rssi;
+    rssiHistory[(idx+1)%128] = 0;
+    return;
+  }
+#endif
+  rssiHistory[scanInfo.i] = rssi;
+}

 // Update things by keypress

@@ -595,12 +633,25 @@ static void UpdateFreqInput(KEY_Code_t key) {
 }

 static void Blacklist() {
+#ifdef ENABLE_SCAN_RANGES
+  blacklistFreqs[blacklistFreqsIdx++ % ARRAY_SIZE(blacklistFreqs)] = peak.i;
+#endif
  rssiHistory[peak.i] = RSSI_MAX_VALUE;
  ResetPeak();
  ToggleRX(false);
-  newScanStart = true;
+  ResetScanStats();
 }

+#ifdef ENABLE_SCAN_RANGES
+static bool IsBlacklisted(uint16_t idx)
+{
+  for(uint8_t i = 0; i < ARRAY_SIZE(blacklistFreqs); i++)
+    if(blacklistFreqs[i] == idx)
+      return true;
+  return false;
+}
+#endif
+
 // Draw things

 // applied x2 to prevent initial rounding
@@ -710,9 +761,11 @@ static void DrawRssiTriggerLevel() {
 }

 static void DrawTicks() {
-  uint32_t f = GetFStart() % 100000;
-  uint32_t step = GetScanStep();
-  for (uint8_t i = 0; i < 128; i += (1 << settings.stepsCount), f += step) {
+  uint32_t f = GetFStart();
+  uint32_t span = GetFEnd() - GetFStart();
+  uint32_t step = span / 128;
+  for (uint8_t i = 0; i < 128; i += (1 << settings.stepsCount)) {
+    f = GetFStart() + span * i / 128;
    uint8_t barValue = 0b00000001;
    (f % 10000) < step && (barValue |= 0b00000010);
    (f % 50000) < step && (barValue |= 0b00000100);
@@ -764,10 +817,16 @@ static void OnKeyDown(uint8_t key) {
    UpdateFreqChangeStep(false);
    break;
  case KEY_UP:
-    UpdateCurrentFreq(true);
+#ifdef ENABLE_SCAN_RANGES
+    if(!gScanRangeStart)
+#endif
+      UpdateCurrentFreq(true);
    break;
  case KEY_DOWN:
-    UpdateCurrentFreq(false);
+#ifdef ENABLE_SCAN_RANGES
+    if(!gScanRangeStart)
+#endif
+      UpdateCurrentFreq(false);
    break;
  case KEY_SIDE1:
    Blacklist();
@@ -779,7 +838,10 @@ static void OnKeyDown(uint8_t key) {
    UpdateRssiTriggerLevel(false);
    break;
  case KEY_5:
-    FreqInput();
+#ifdef ENABLE_SCAN_RANGES
+    if(!gScanRangeStart)
+#endif  
+      FreqInput();
    break;
  case KEY_0:
    ToggleModulation();
@@ -788,7 +850,10 @@ static void OnKeyDown(uint8_t key) {
    ToggleListeningBW();
    break;
  case KEY_4:
-    ToggleStepsCount();
+#ifdef ENABLE_SCAN_RANGES
+    if(!gScanRangeStart)
+#endif
+      ToggleStepsCount();
    break;
  case KEY_SIDE2:
    ToggleBacklight();
@@ -932,7 +997,7 @@ static void RenderStatus() {

 static void RenderSpectrum() {
  DrawTicks();
-  DrawArrow(peak.i << settings.stepsCount);
+  DrawArrow(128u * peak.i / GetStepsCount());
  DrawSpectrum();
  DrawRssiTriggerLevel();
  DrawF(peak.f);
@@ -1049,7 +1114,11 @@ bool HandleUserInput() {
 }

 static void Scan() {
-  if (rssiHistory[scanInfo.i] != RSSI_MAX_VALUE) {
+  if (rssiHistory[scanInfo.i] != RSSI_MAX_VALUE
+#ifdef ENABLE_SCAN_RANGES
+  && !IsBlacklisted(scanInfo.i)
+#endif
+  ) {
    SetF(scanInfo.f);
    Measure();
    UpdateScanInfo();
@@ -1070,6 +1139,10 @@ static void UpdateScan() {
    return;
  }

+  if(scanInfo.measurementsCount < 128)
+    memset(&rssiHistory[scanInfo.measurementsCount], 0, 
+      sizeof(rssiHistory) - scanInfo.measurementsCount*sizeof(rssiHistory[0]));
+
  redrawScreen = true;
  preventKeypress = false;

@@ -1122,7 +1195,7 @@ static void UpdateListening() {
  }

  ToggleRX(false);
-  newScanStart = true;
+  ResetScanStats();
 }

 static void Tick() {
@@ -1135,6 +1208,26 @@ static void Tick() {
  }
 #endif

+#ifdef ENABLE_SCAN_RANGES
+  if (gNextTimeslice_500ms) {
+    gNextTimeslice_500ms = false;
+
+    // if a lot of steps then it takes long time
+    // we don't want to wait for whole scan
+    // listening has it's own timer
+    if(GetStepsCount()>128 && !isListening) {
+      UpdatePeakInfo();
+      if (IsPeakOverLevel()) {
+        ToggleRX(true);
+        TuneToPeak();
+        return;
+      }
+      redrawScreen = true;
+      preventKeypress = false;
+    }
+  }
+#endif
+
  if (!preventKeypress) {
    HandleUserInput();
  }
@@ -1166,18 +1259,32 @@ void APP_RunSpectrum() {
  // TX here coz it always? set to active VFO
  vfo = gEeprom.TX_VFO;
  // set the current frequency in the middle of the display
-  currentFreq = initialFreq = gEeprom.VfoInfo[vfo].pRX->Frequency -
-                              ((GetStepsCount() / 2) * GetScanStep());
+#ifdef ENABLE_SCAN_RANGES
+  if(gScanRangeStart) {
+    currentFreq = initialFreq = gScanRangeStart;
+    for(uint8_t i = 0; i < ARRAY_SIZE(scanStepValues); i++) {
+      if(scanStepValues[i] >= gTxVfo->StepFrequency) {
+        settings.scanStepIndex = i;
+        break;
+      }
+    }
+    settings.stepsCount = STEPS_128;
+  }
+  else
+#endif
+    currentFreq = initialFreq = gTxVfo->pRX->Frequency -
+                                ((GetStepsCount() / 2) * GetScanStep());

  BackupRegisters();

  isListening = true; // to turn off RX later
  redrawStatus = true;
-  redrawScreen = false; // we will wait until scan done
+  redrawScreen = true;
  newScanStart = true;

+
  ToggleRX(true), ToggleRX(false); // hack to prevent noise when squelch off
-  RADIO_SetModulation(settings.modulationType = gRxVfo->Modulation);
+  RADIO_SetModulation(settings.modulationType = gTxVfo->Modulation);

  BK4819_SetFilterBandwidth(settings.listenBw = BK4819_FILTER_BW_WIDE, false);

--- a/app/spectrum.h
+++ b/app/spectrum.h
@@ -45,9 +45,8 @@ static const uint8_t U8RssiMap[] = {
 };

 static const uint16_t scanStepValues[] = {
-    1,   10,  50,  100,
-
-    250, 500, 625, 833, 1000, 1250, 2500, 10000,
+    1, 10, 50, 100, 250, 500, 625, 833, 
+    1000, 1250, 1500, 2000, 2500, 5000, 10000,
 };

 static const uint16_t scanStepBWRegValues[] = {
@@ -110,7 +109,10 @@ typedef enum ScanStep {
  S_STEP_8_33kHz,
  S_STEP_10_0kHz,
  S_STEP_12_5kHz,
+  S_STEP_15_0kHz,
+  S_STEP_20_0kHz,
  S_STEP_25_0kHz,
+  S_STEP_50_0kHz,
  S_STEP_100_0kHz,
 } ScanStep;

@@ -136,17 +138,17 @@ typedef struct KeyboardState {

 typedef struct ScanInfo {
  uint16_t rssi, rssiMin, rssiMax;
-  uint8_t i, iPeak;
+  uint16_t i, iPeak;
  uint32_t f, fPeak;
  uint16_t scanStep;
-  uint8_t measurementsCount;
+  uint16_t measurementsCount;
 } ScanInfo;

 typedef struct PeakInfo {
  uint16_t t;
  uint16_t rssi;
  uint32_t f;
-  uint8_t i;
+  uint16_t i;
 } PeakInfo;

 void APP_RunSpectrum(void);
--- a/app/uart.c
+++ b/app/uart.c
@@ -487,11 +487,11 @@ bool UART_IsCommandAvailable(void)
 	if (TailIndex < Index)
 	{
 		const uint16_t ChunkSize = sizeof(UART_DMA_Buffer) - Index;
-		memmove(UART_Command.Buffer, UART_DMA_Buffer + Index, ChunkSize);
-		memmove(UART_Command.Buffer + ChunkSize, UART_DMA_Buffer, TailIndex);
+		memcpy(UART_Command.Buffer, UART_DMA_Buffer + Index, ChunkSize);
+		memcpy(UART_Command.Buffer + ChunkSize, UART_DMA_Buffer, TailIndex);
 	}
 	else
-		memmove(UART_Command.Buffer, UART_DMA_Buffer + Index, TailIndex - Index);
+		memcpy(UART_Command.Buffer, UART_DMA_Buffer + Index, TailIndex - Index);

 	TailIndex = DMA_INDEX(TailIndex, 2);
 	if (TailIndex < gUART_WriteIndex)
--- a/audio.c
+++ b/audio.c
@@ -205,7 +205,7 @@ volatile bool     gFlagPlayQueuedVoice;
 VOICE_ID_t        gAnotherVoiceID = VOICE_ID_INVALID;


-void AUDIO_PlayVoice(uint8_t VoiceID)
+static void AUDIO_PlayVoice(uint8_t VoiceID)
 {
 	unsigned int i;

--- a/audio.h
+++ b/audio.h
@@ -149,7 +149,6 @@ static inline void AUDIO_AudioPathOff(void) {
 	extern volatile bool     gFlagPlayQueuedVoice;
 	extern VOICE_ID_t        gAnotherVoiceID;
 	
-	void    AUDIO_PlayVoice(uint8_t VoiceID);
 	void    AUDIO_PlaySingleVoice(bool bFlag);
 	void    AUDIO_SetVoiceID(uint8_t Index, VOICE_ID_t VoiceID);
 	uint8_t AUDIO_SetDigitVoice(uint8_t Index, uint16_t Value);
@@ -157,4 +156,3 @@ static inline void AUDIO_AudioPathOff(void) {
 #endif

 #endif
-
--- a/board.c
+++ b/board.c
@@ -50,10 +50,10 @@
 		FLASH_Init(FLASH_READ_MODE_1_CYCLE);
 		FLASH_ConfigureTrimValues();
 		SYSTEM_ConfigureClocks();
-	
+
 		overlay_FLASH_MainClock       = 48000000;
 		overlay_FLASH_ClockMultiplier = 48;
-	
+
 		FLASH_Init(FLASH_READ_MODE_2_CYCLE);
 	}
 #endif
@@ -494,10 +494,12 @@ void BOARD_Init(void)
 	BACKLIGHT_InitHardware();
 	BOARD_ADC_Init();
 	ST7565_Init();
-	#ifdef ENABLE_FMRADIO
+#ifdef ENABLE_FMRADIO
 		BK1080_Init(0, false);
-	#endif
+#endif
+
+#if defined(ENABLE_UART) || defined(ENABLED_AIRCOPY)
 	CRC_Init();
+#endif
+
 }
-
-
--- a/debugging.h
+++ b/debugging.h
@@ -1,35 +1,38 @@
 #ifndef DEBUGGING_H
 #define DEBUGGING_H

+#ifdef ENABLE_UART
+
 #include "driver/uart.h"
 #include "driver/bk4819.h"
 #include "string.h"
 #include "external/printf/printf.h"
 #include "am_fix.h"

-
-static inline void LogUart(char * str)
+static inline void LogUart(const char *const str)
 {
-    UART_Send(str, strlen(str));
+	UART_Send(str, strlen(str));
 }

 static inline void LogRegUart(uint16_t reg)
 {
-    uint16_t regVal = BK4819_ReadRegister(reg);
-    char buf[32];
-    sprintf(buf, "reg%02X: %04X\n", reg, regVal);
-    LogUart(buf);
+	uint16_t regVal = BK4819_ReadRegister(reg);
+	char buf[32];
+	sprintf(buf, "reg%02X: %04X\n", reg, regVal);
+	LogUart(buf);
 }

-
 static inline void LogPrint()
 {
-    uint16_t rssi = BK4819_GetRSSI();
-    uint16_t reg7e = BK4819_ReadRegister(0x7E);
-    char buf[32];
-    sprintf(buf, "reg7E: %d  %2d  %6d  %2d  %d   rssi: %d\n", 
-        (reg7e >> 15), (reg7e >> 12) & 0b111, (reg7e >> 5) & 0b1111111, (reg7e >> 2) & 0b111, (reg7e >> 0) & 0b11, rssi);
-    LogUart(buf);
+	uint16_t rssi = BK4819_GetRSSI();
+	uint16_t reg7e = BK4819_ReadRegister(0x7E);
+	char buf[32];
+	sprintf(buf, "reg7E: %d  %2d  %6d  %2d  %d   rssi: %d\n", (reg7e >> 15),
+		(reg7e >> 12) & 0b111, (reg7e >> 5) & 0b1111111,
+		(reg7e >> 2) & 0b111, (reg7e >> 0) & 0b11, rssi);
+	LogUart(buf);
 }

-#endif
+#endif
+
+#endif
--- a/driver/backlight.c
+++ b/driver/backlight.c
@@ -67,12 +67,12 @@ void BACKLIGHT_TurnOn(void)
 		case 1:	// 5 sec
 		case 2:	// 10 sec
 		case 3:	// 20 sec
-			gBacklightCountdown_500ms = 1 + (2 << (gEeprom.BACKLIGHT_TIME - 1)) * 10;
+			gBacklightCountdown_500ms = 1 + (2 << (gEeprom.BACKLIGHT_TIME - 1)) * 5;
 			break;
 		case 4:	// 1 min
 		case 5:	// 2 min
 		case 6:	// 4 min
-			gBacklightCountdown_500ms = 1 + (2 << (gEeprom.BACKLIGHT_TIME - 4)) * 120;
+			gBacklightCountdown_500ms = 1 + (2 << (gEeprom.BACKLIGHT_TIME - 4)) * 60;
 			break;
 		case 7:	// always on
 			gBacklightCountdown_500ms = 0;
@@ -103,8 +103,16 @@ bool BACKLIGHT_IsOn()
 	return backlightOn;
 }

+static uint8_t currentBrightness;
+
 void BACKLIGHT_SetBrightness(uint8_t brigtness)
 {
+	currentBrightness = brigtness;
 	PWM_PLUS0_CH0_COMP = (1 << brigtness) - 1;
 	//PWM_PLUS0_SWLOAD = 1;
 }
+
+uint8_t BACKLIGHT_GetBrightness(void)
+{
+	return currentBrightness;
+}
--- a/driver/backlight.h
+++ b/driver/backlight.h
@@ -36,5 +36,6 @@ void BACKLIGHT_TurnOn();
 void BACKLIGHT_TurnOff();
 bool BACKLIGHT_IsOn();
 void BACKLIGHT_SetBrightness(uint8_t brigtness);
+uint8_t BACKLIGHT_GetBrightness(void);

 #endif
--- a/driver/bk4819.c
+++ b/driver/bk4819.c
@@ -16,13 +16,15 @@

 #include <stdio.h>   // NULL

-#include "audio.h"
+#include "../audio.h"
+#include "../bsp/dp32g030/gpio.h"
+#include "../bsp/dp32g030/portcon.h"
+
 #include "bk4819.h"
-#include "bsp/dp32g030/gpio.h"
-#include "bsp/dp32g030/portcon.h"
-#include "driver/gpio.h"
-#include "driver/system.h"
-#include "driver/systick.h"
+#include "gpio.h"
+#include "system.h"
+#include "systick.h"
+

 #ifndef ARRAY_SIZE
 	#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
@@ -127,7 +129,6 @@ static uint16_t BK4819_ReadU16(void)
 	PORTCON_PORTC_IE = (PORTCON_PORTC_IE & ~PORTCON_PORTC_IE_C2_MASK) | PORTCON_PORTC_IE_C2_BITS_ENABLE;
 	GPIOC->DIR = (GPIOC->DIR & ~GPIO_DIR_2_MASK) | GPIO_DIR_2_BITS_INPUT;
 	SYSTICK_DelayUs(1);
-
 	Value = 0;
 	for (i = 0; i < 16; i++)
 	{
--- a/driver/crc.c
+++ b/driver/crc.c
@@ -14,8 +14,8 @@
 *     limitations under the License.
 */

-#include "bsp/dp32g030/crc.h"
-#include "driver/crc.h"
+#include "../bsp/dp32g030/crc.h"
+#include "crc.h"

 void CRC_Init(void)
 {
@@ -47,4 +47,3 @@ uint16_t CRC_Calculate(const void *pBuffer, uint16_t Size)

 	return Crc;
 }
-
--- a/driver/keyboard.c
+++ b/driver/keyboard.c
@@ -117,19 +117,13 @@ KEY_Code_t KEYBOARD_Poll(void)
 		GPIOA->DATA &= keyboard[j].set_to_zero_mask;

 		// Read all 4 GPIO pins at once .. with de-noise, max of 8 sample loops
-		for (i = 0, k = 0, reg = 0; i < 3 && k < 8; i++, k++)
-		{
-			uint16_t reg2;
-
+		for (i = 0, k = 0, reg = 0; i < 3 && k < 8; i++, k++) {
 			SYSTICK_DelayUs(1);
-
-			reg2 = GPIOA->DATA;
-			if (reg != reg2)
-			{	// noise
-				reg = reg2;
-				i   = 0;
-			}
+			uint16_t reg2 = GPIOA->DATA;
+			i *= reg == reg2;
+			reg = reg2;
 		}
+
 		if (i < 3)
 			break;	// noise is too bad

--- a/driver/system.c
+++ b/driver/system.c
@@ -14,10 +14,10 @@
 *     limitations under the License.
 */

-#include "bsp/dp32g030/pmu.h"
-#include "bsp/dp32g030/syscon.h"
-#include "driver/system.h"
-#include "driver/systick.h"
+#include "../bsp/dp32g030/pmu.h"
+#include "../bsp/dp32g030/syscon.h"
+#include "system.h"
+#include "systick.h"

 void SYSTEM_DelayMs(uint32_t Delay)
 {
--- a/driver/systick.c
+++ b/driver/systick.c
@@ -15,8 +15,8 @@
 */

 #include "ARMCM0.h"
-#include "driver/systick.h"
-#include "misc.h"
+#include "systick.h"
+#include "../misc.h"

 // 0x20000324
 static uint32_t gTickMultiplier;
@@ -29,17 +29,21 @@ void SYSTICK_Init(void)

 void SYSTICK_DelayUs(uint32_t Delay)
 {
-	const uint32_t ticks    = Delay * gTickMultiplier;
-	uint32_t       i        = 0;
-	uint32_t       Start    = SysTick->LOAD;
-	uint32_t       Previous = SysTick->VAL;
+	const uint32_t ticks = Delay * gTickMultiplier;
+	uint32_t elapsed_ticks = 0;
+	uint32_t Start = SysTick->LOAD;
+	uint32_t Previous = SysTick->VAL;
 	do {
 		uint32_t Current;
-		uint32_t Delta;
-		while ((Current = SysTick->VAL) == Previous) {}
-		Delta    = (Current < Previous) ? -Current : Start - Current;
-		i       += Delta + Previous;
-		Previous = Current;
-	} while (i < ticks);
-}

+		do {
+			Current = SysTick->VAL;
+		} while (Current == Previous);
+
+		uint32_t Delta = ((Current < Previous) ? - Current : Start - Current);
+
+		elapsed_ticks += Delta + Previous;
+
+		Previous = Current;
+	} while (elapsed_ticks < ticks);
+}
--- a/frequencies.c
+++ b/frequencies.c
@@ -65,35 +65,38 @@ const freq_band_table_t frequencyBandTable[] =
 // this order of steps has to be preserved for backwards compatibility with other/stock firmwares
 const uint16_t gStepFrequencyTable[] = {
 // standard steps
-	[STEP_2_5kHz]   = 250, 
-	[STEP_5kHz]     = 500, 
-	[STEP_6_25kHz]  = 625, 
-	[STEP_10kHz]    = 1000, 
-	[STEP_12_5kHz]  = 1250, 
-	[STEP_25kHz]    = 2500, 
+	[STEP_2_5kHz]   = 250,
+	[STEP_5kHz]     = 500,
+	[STEP_6_25kHz]  = 625,
+	[STEP_10kHz]    = 1000,
+	[STEP_12_5kHz]  = 1250,
+	[STEP_25kHz]    = 2500,
 	[STEP_8_33kHz]  = 833,
 // custom steps
-	[STEP_0_01kHz]  = 1, 
-	[STEP_0_05kHz]  = 5, 
-	[STEP_0_1kHz]   = 10, 
-	[STEP_0_25kHz]  = 25, 
-	[STEP_0_5kHz]   = 50, 
-	[STEP_1kHz]     = 100, 
-	[STEP_1_25kHz]  = 125, 
-	[STEP_15kHz]    = 1500, 
-	[STEP_30kHz]    = 3000, 
-	[STEP_50kHz]    = 5000, 
-	[STEP_100kHz]   = 10000, 
-	[STEP_125kHz]   = 12500, 
-	[STEP_250kHz]   = 25000, 
+	[STEP_0_01kHz]  = 1,
+	[STEP_0_05kHz]  = 5,
+	[STEP_0_1kHz]   = 10,
+	[STEP_0_25kHz]  = 25,
+	[STEP_0_5kHz]   = 50,
+	[STEP_1kHz]     = 100,
+	[STEP_1_25kHz]  = 125,
+	[STEP_9kHz]     = 900,
+	[STEP_15kHz]    = 1500,
+	[STEP_20kHz]    = 2000,
+	[STEP_30kHz]    = 3000,
+	[STEP_50kHz]    = 5000,
+	[STEP_100kHz]   = 10000,
+	[STEP_125kHz]   = 12500,
+	[STEP_200kHz]   = 20000,
+	[STEP_250kHz]   = 25000,
 	[STEP_500kHz]   = 50000
 };


 const STEP_Setting_t StepSortedIndexes[] = {
 	STEP_0_01kHz, STEP_0_05kHz, STEP_0_1kHz, STEP_0_25kHz, STEP_0_5kHz, STEP_1kHz, STEP_1_25kHz, STEP_2_5kHz, STEP_5kHz, STEP_6_25kHz,
-	STEP_8_33kHz, STEP_10kHz, STEP_12_5kHz, STEP_15kHz, STEP_25kHz, STEP_30kHz, STEP_50kHz, STEP_100kHz,
-	STEP_125kHz, STEP_250kHz, STEP_500kHz
+	STEP_8_33kHz, STEP_9kHz, STEP_10kHz, STEP_12_5kHz, STEP_15kHz, STEP_20kHz, STEP_25kHz, STEP_30kHz, STEP_50kHz, STEP_100kHz,
+	STEP_125kHz, STEP_200kHz, STEP_250kHz, STEP_500kHz
 };

 STEP_Setting_t FREQUENCY_GetStepIdxFromSortedIdx(uint8_t sortedIdx)
--- a/frequencies.h
+++ b/frequencies.h
@@ -45,27 +45,30 @@ extern const freq_band_table_t frequencyBandTable[];

 typedef enum {
 // standard steps
-	STEP_2_5kHz, 
-	STEP_5kHz, 
-	STEP_6_25kHz, 
-	STEP_10kHz, 
-	STEP_12_5kHz, 
-	STEP_25kHz, 
+	STEP_2_5kHz,
+	STEP_5kHz,
+	STEP_6_25kHz,
+	STEP_10kHz,
+	STEP_12_5kHz,
+	STEP_25kHz,
 	STEP_8_33kHz,
 // custom steps
-	STEP_0_01kHz,	
-	STEP_0_05kHz,	
-	STEP_0_1kHz, 
-	STEP_0_25kHz, 
-	STEP_0_5kHz, 
-	STEP_1kHz, 
-	STEP_1_25kHz, 
+	STEP_0_01kHz,
+	STEP_0_05kHz,
+	STEP_0_1kHz,
+	STEP_0_25kHz,
+	STEP_0_5kHz,
+	STEP_1kHz,
+	STEP_1_25kHz,
+	STEP_9kHz,
 	STEP_15kHz,
-	STEP_30kHz, 
-	STEP_50kHz, 
-	STEP_100kHz, 
-	STEP_125kHz, 
-	STEP_250kHz, 
+	STEP_20kHz,
+	STEP_30kHz,
+	STEP_50kHz,
+	STEP_100kHz,
+	STEP_125kHz,
+	STEP_200kHz,
+	STEP_250kHz,
 	STEP_500kHz,
 	STEP_N_ELEM
 } STEP_Setting_t;
--- a/helper/battery.c
+++ b/helper/battery.c
@@ -14,6 +14,8 @@
 *     limitations under the License.
 */

+#include <assert.h>
+
 #include "battery.h"
 #include "driver/backlight.h"
 #include "driver/st7565.h"
@@ -49,48 +51,45 @@ const uint16_t 	  lowBatteryPeriod = 30;
 volatile uint16_t gPowerSave_10ms;


-unsigned int BATTERY_VoltsToPercent(const unsigned int voltage_10mV)
-{
-	const uint16_t crv1600[][2] = {
+const uint16_t Voltage2PercentageTable[][7][2] = {
+	[BATTERY_TYPE_1600_MAH] = {
 		{828, 100},
 		{814, 97 },
 		{760, 25 },
 		{729, 6  },
 		{630, 0  },
-		{0,   0  }
-	};
+		{0,   0  },
+		{0,   0  },
+	},

-	const uint16_t crv2200[][2] = {
+	[BATTERY_TYPE_2200_MAH] = {
 		{832, 100},
 		{813, 95 },
 		{740, 60 },
 		{707, 21 },
 		{682, 5  },
 		{630, 0  },
-		{0,   0  }
-	};
-	
-	const BATTERY_Type_t type = gEeprom.BATTERY_TYPE;
-	const uint16_t(*crv)[2];
-	uint8_t size;
-	if (type == BATTERY_TYPE_2200_MAH) {
-		crv = crv2200;
-		size = ARRAY_SIZE(crv2200);
-	}	
-	else {
-		crv = crv1600;
-		size = ARRAY_SIZE(crv1600);
-	}
+		{0,   0  },
+	},
+};

+static_assert(ARRAY_SIZE(Voltage2PercentageTable[BATTERY_TYPE_1600_MAH]) ==
+	ARRAY_SIZE(Voltage2PercentageTable[BATTERY_TYPE_2200_MAH]));
+
+
+unsigned int BATTERY_VoltsToPercent(const unsigned int voltage_10mV)
+{
+	const uint16_t (*crv)[2] = Voltage2PercentageTable[gEeprom.BATTERY_TYPE];
 	const int mulipl = 1000;
-	for (int i = 1; i < size; i++) {
+	for (unsigned int i = 1; i < ARRAY_SIZE(Voltage2PercentageTable[BATTERY_TYPE_2200_MAH]); i++) {
 		if (voltage_10mV > crv[i][0]) {
-			int a = (crv[i - 1][1] - crv[i][1]) * mulipl / (crv[i - 1][0] - crv[i][0]);
-			int b = crv[i][1] - a * crv[i][0] / mulipl;
-			int p = a * voltage_10mV / mulipl + b;
+			const int a = (crv[i - 1][1] - crv[i][1]) * mulipl / (crv[i - 1][0] - crv[i][0]);
+			const int b = crv[i][1] - a * crv[i][0] / mulipl;
+			const int p = a * voltage_10mV / mulipl + b;
 			return MIN(p, 100);
 		}
 	}
+
 	return 0;
 }

@@ -99,8 +98,6 @@ void BATTERY_GetReadings(const bool bDisplayBatteryLevel)
 	const uint8_t  PreviousBatteryLevel = gBatteryDisplayLevel;
 	const uint16_t Voltage              = (gBatteryVoltages[0] + gBatteryVoltages[1] + gBatteryVoltages[2] + gBatteryVoltages[3]) / 4;

-	
-
 	gBatteryVoltageAverage = (Voltage * 760) / gBatteryCalibration[3];

 	if(gBatteryVoltageAverage > 890)
@@ -116,7 +113,7 @@ void BATTERY_GetReadings(const bool bDisplayBatteryLevel)
 				gBatteryDisplayLevel = i;
 				break;
 			}
-		}	
+		}
 	}


@@ -160,7 +157,7 @@ void BATTERY_GetReadings(const bool bDisplayBatteryLevel)
 			if (bDisplayBatteryLevel)
 				UI_DisplayBattery(gBatteryDisplayLevel, gLowBatteryBlink);
 		}
-		
+
 		if(!gLowBatteryConfirmed)
 			gUpdateDisplay = true;

@@ -168,56 +165,61 @@ void BATTERY_GetReadings(const bool bDisplayBatteryLevel)
 	}
 }

-void BATTERY_TimeSlice500ms(void) 
+void BATTERY_TimeSlice500ms(void)
 {
-	if (gLowBattery)
-	{
-		gLowBatteryBlink = ++lowBatteryCountdown & 1;
-
-		UI_DisplayBattery(0, gLowBatteryBlink);
-
-		if (gCurrentFunction != FUNCTION_TRANSMIT)
-		{	// not transmitting
-
-			if (lowBatteryCountdown < lowBatteryPeriod)
-			{
-				if (lowBatteryCountdown == lowBatteryPeriod-1 && !gChargingWithTypeC && !gLowBatteryConfirmed)
-					AUDIO_PlayBeep(BEEP_500HZ_60MS_DOUBLE_BEEP);
-			}
-			else
-			{
-				lowBatteryCountdown = 0;
-
-				if (!gChargingWithTypeC)
-				{	// not on charge
-					if(!gLowBatteryConfirmed) {
-						AUDIO_PlayBeep(BEEP_500HZ_60MS_DOUBLE_BEEP);
-#ifdef ENABLE_VOICE
-						AUDIO_SetVoiceID(0, VOICE_ID_LOW_VOLTAGE);
-#endif
-					}
-					if (gBatteryDisplayLevel == 0)
-					{
-#ifdef ENABLE_VOICE
-						AUDIO_PlaySingleVoice(true);
-#endif
-
-						gReducedService = true;
-
-						//if (gCurrentFunction != FUNCTION_POWER_SAVE)
-							FUNCTION_Select(FUNCTION_POWER_SAVE);
-
-						ST7565_HardwareReset();
-
-						if (gEeprom.BACKLIGHT_TIME < (ARRAY_SIZE(gSubMenu_BACKLIGHT) - 1))
-							BACKLIGHT_TurnOff();  // turn the backlight off
-					}
-#ifdef ENABLE_VOICE
-					else
-						AUDIO_PlaySingleVoice(false);
-#endif
-				}
-			}
-		}
+	if (!gLowBattery) {
+		return;
 	}
-}
+
+	gLowBatteryBlink = ++lowBatteryCountdown & 1;
+
+	UI_DisplayBattery(0, gLowBatteryBlink);
+
+	if (gCurrentFunction == FUNCTION_TRANSMIT) {
+		return;
+	}
+
+	// not transmitting
+
+	if (lowBatteryCountdown < lowBatteryPeriod) {
+		if (lowBatteryCountdown == lowBatteryPeriod-1 && !gChargingWithTypeC && !gLowBatteryConfirmed) {
+			AUDIO_PlayBeep(BEEP_500HZ_60MS_DOUBLE_BEEP);
+		}
+		return;
+	}
+
+	lowBatteryCountdown = 0;
+
+	if (gChargingWithTypeC) {
+		return;
+	}
+
+	// not on charge
+	if (!gLowBatteryConfirmed) {
+		AUDIO_PlayBeep(BEEP_500HZ_60MS_DOUBLE_BEEP);
+#ifdef ENABLE_VOICE
+		AUDIO_SetVoiceID(0, VOICE_ID_LOW_VOLTAGE);
+#endif
+	}
+
+	if (gBatteryDisplayLevel != 0) {
+#ifdef ENABLE_VOICE
+		AUDIO_PlaySingleVoice(false);
+#endif
+		return;
+	}
+
+#ifdef ENABLE_VOICE
+	AUDIO_PlaySingleVoice(true);
+#endif
+
+	gReducedService = true;
+
+	FUNCTION_Select(FUNCTION_POWER_SAVE);
+
+	ST7565_HardwareReset();
+
+	if (gEeprom.BACKLIGHT_TIME < (ARRAY_SIZE(gSubMenu_BACKLIGHT) - 1)) {
+		BACKLIGHT_TurnOff();
+	}
+}
--- a/helper/battery.h
+++ b/helper/battery.h
@@ -40,9 +40,9 @@ typedef enum {
    BATTERY_TYPE_UNKNOWN
 } BATTERY_Type_t;

-unsigned int BATTERY_VoltsToPercent(const unsigned int voltage_10mV);
-void BATTERY_GetReadings(const bool bDisplayBatteryLevel);
+
+unsigned int BATTERY_VoltsToPercent(unsigned int voltage_10mV);
+void BATTERY_GetReadings(bool bDisplayBatteryLevel);
 void BATTERY_TimeSlice500ms(void);

 #endif
-
--- a/images/codespace1.png
+++ b/images/codespace1.png
--- a/images/codespace2.png
+++ b/images/codespace2.png
--- a/main.c
+++ b/main.c
@@ -14,44 +14,52 @@
 *     limitations under the License.
 */

+#include <stdint.h>
 #include <string.h>
 #include <stdio.h>     // NULL

 #ifdef ENABLE_AM_FIX
 	#include "am_fix.h"
 #endif
+
+#include "audio.h"
+#include "board.h"
+#include "misc.h"
+#include "radio.h"
+#include "settings.h"
+#include "version.h"
+
 #include "app/app.h"
 #include "app/dtmf.h"
-#include "audio.h"
 #include "bsp/dp32g030/gpio.h"
 #include "bsp/dp32g030/syscon.h"
-#include "board.h"
+
 #include "driver/backlight.h"
 #include "driver/bk4819.h"
 #include "driver/gpio.h"
 #include "driver/system.h"
 #include "driver/systick.h"
-#include "driver/uart.h"
+#ifdef ENABLE_UART
+	#include "driver/uart.h"
+#endif
+
 #include "helper/battery.h"
 #include "helper/boot.h"
-#include "misc.h"
-#include "radio.h"
-#include "settings.h"
+
 #include "ui/lock.h"
 #include "ui/welcome.h"
 #include "ui/menu.h"
-#include "version.h"
-
-void _putchar(char c)
+void _putchar(__attribute__((unused)) char c)
 {
+
+#ifdef ENABLE_UART
 	UART_Send((uint8_t *)&c, 1);
+#endif
+
 }

 void Main(void)
 {
-	unsigned int i;
-	BOOT_Mode_t  BootMode;
-
 	// Enable clock gating of blocks we need
 	SYSCON_DEV_CLK_GATE = 0
 		| SYSCON_DEV_CLK_GATE_GPIOA_BITS_ENABLE
@@ -64,18 +72,19 @@ void Main(void)
 		| SYSCON_DEV_CLK_GATE_AES_BITS_ENABLE
 		| SYSCON_DEV_CLK_GATE_PWM_PLUS0_BITS_ENABLE;

+
 	SYSTICK_Init();
 	BOARD_Init();
-	UART_Init();

 	boot_counter_10ms = 250;   // 2.5 sec

+#ifdef ENABLE_UART
+	UART_Init();
 	UART_Send(UART_Version, strlen(UART_Version));
+#endif

 	// Not implementing authentic device checks

-	memset(&gEeprom, 0, sizeof(gEeprom));
-
 	memset(gDTMF_String, '-', sizeof(gDTMF_String));
 	gDTMF_String[sizeof(gDTMF_String) - 1] = 0;

@@ -94,17 +103,17 @@ void Main(void)

 	RADIO_SetupRegisters(true);

-	for (i = 0; i < ARRAY_SIZE(gBatteryVoltages); i++)
+	for (unsigned int i = 0; i < ARRAY_SIZE(gBatteryVoltages); i++)
 		BOARD_ADC_GetBatteryInfo(&gBatteryVoltages[i], &gBatteryCurrent);

 	BATTERY_GetReadings(false);

-	#ifdef ENABLE_AM_FIX
-		AM_fix_init();
-	#endif
+#ifdef ENABLE_AM_FIX
+	AM_fix_init();
+#endif
+
+	const BOOT_Mode_t  BootMode = BOOT_GetMode();

-	BootMode = BOOT_GetMode();
-	
 	if (BootMode == BOOT_MODE_F_LOCK)
 	{
 		gF_LOCK = true;            // flag to say include the hidden menu items
@@ -126,8 +135,9 @@ void Main(void)
 	{	// keys are pressed
 		UI_DisplayReleaseKeys();
 		BACKLIGHT_TurnOn();
-		i = 0;
-		while (i < 50)  // 500ms
+
+		// 500ms
+		for (int i = 0; i < 50;)
 		{
 			i = (GPIO_CheckBit(&GPIOC->DATA, GPIOC_PIN_PTT) && KEYBOARD_Poll() == KEY_INVALID) ? i + 1 : 0;
 			SYSTEM_DelayMs(10);
@@ -207,24 +217,18 @@ void Main(void)
 #ifdef ENABLE_NOAA
 		RADIO_ConfigureNOAA();
 #endif
-
-		// ******************
 	}

-	while (1)
-	{
+	while (true) {
 		APP_Update();

-		if (gNextTimeslice)
-		{
-			APP_TimeSlice10ms();
-			gNextTimeslice = false;
-		}
+		if (gNextTimeslice) {

-		if (gNextTimeslice_500ms)
-		{
-			APP_TimeSlice500ms();
-			gNextTimeslice_500ms = false;
+			APP_TimeSlice10ms();
+
+			if (gNextTimeslice_500ms) {
+				APP_TimeSlice500ms();
+			}
 		}
 	}
 }
--- a/misc.h
+++ b/misc.h
@@ -32,6 +32,10 @@
 	#define MIN(a, b) ({ __typeof__ (a) _a = (a); __typeof__ (b) _b = (b); _a < _b ? _a : _b; })
 #endif

+#ifndef SWAP
+	#define SWAP(a, b) ({ __typeof__ (a) _c = (a);  a = b; b = _c; })
+#endif
+
 #define IS_MR_CHANNEL(x)       ((x) <= MR_CHANNEL_LAST)
 #define IS_FREQ_CHANNEL(x)     ((x) >= FREQ_CHANNEL_FIRST && (x) <= FREQ_CHANNEL_LAST)
 #define IS_VALID_CHANNEL(x)    ((x) < LAST_CHANNEL)
--- a/radio.c
+++ b/radio.c
@@ -723,53 +723,45 @@ void RADIO_SetupRegisters(bool switchToForeground)
 		}
 	#endif

-	#ifdef ENABLE_VOX
-		#ifdef ENABLE_NOAA
-			#ifdef ENABLE_FMRADIO
-				if (gEeprom.VOX_SWITCH && !gFmRadioMode && !IS_NOAA_CHANNEL(gCurrentVfo->CHANNEL_SAVE) && gCurrentVfo->Modulation == MODULATION_FM)
-			#else
-				if (gEeprom.VOX_SWITCH && !IS_NOAA_CHANNEL(gCurrentVfo->CHANNEL_SAVE) && gCurrentVfo->Modulation == MODULATION_FM)
-			#endif
-		#else
-			#ifdef ENABLE_FMRADIO
-				if (gEeprom.VOX_SWITCH && !gFmRadioMode && gCurrentVfo->Modulation == MODULATION_FM)
-			#else
-				if (gEeprom.VOX_SWITCH && gCurrentVfo->Modulation == MODULATION_FM)
-			#endif
-		#endif
-		{
-			BK4819_EnableVox(gEeprom.VOX1_THRESHOLD, gEeprom.VOX0_THRESHOLD);
-			InterruptMask |= BK4819_REG_3F_VOX_FOUND | BK4819_REG_3F_VOX_LOST;
-		}
-		else
-	#endif
+#ifdef ENABLE_VOX
+	if (gEeprom.VOX_SWITCH  && gCurrentVfo->Modulation == MODULATION_FM
+#ifdef ENABLE_NOAA
+		&& !IS_NOAA_CHANNEL(gCurrentVfo->CHANNEL_SAVE)
+#endif
+#ifdef ENABLE_FMRADIO
+		&& !gFmRadioMode
+#endif
+	){
+		BK4819_EnableVox(gEeprom.VOX1_THRESHOLD, gEeprom.VOX0_THRESHOLD);
+		InterruptMask |= BK4819_REG_3F_VOX_FOUND | BK4819_REG_3F_VOX_LOST;
+	}
+	else
+#endif
+	{
 		BK4819_DisableVox();
+	}

 	// RX expander
 	BK4819_SetCompander((gRxVfo->Modulation == MODULATION_FM && gRxVfo->Compander >= 2) ? gRxVfo->Compander : 0);

-	#if 0
-		if (!gRxVfo->DTMF_DECODING_ENABLE && !gSetting_KILLED)
-		{
-			BK4819_DisableDTMF();
-		}
-		else
-		{
-			BK4819_EnableDTMF();
-			InterruptMask |= BK4819_REG_3F_DTMF_5TONE_FOUND;
-		}
-	#else
-		if (gCurrentFunction != FUNCTION_TRANSMIT)
-		{
-			BK4819_DisableDTMF();
-			BK4819_EnableDTMF();
-			InterruptMask |= BK4819_REG_3F_DTMF_5TONE_FOUND;
-		}
-		else
-		{
-			BK4819_DisableDTMF();
-		}
-	#endif
+#if 0
+	if (!gRxVfo->DTMF_DECODING_ENABLE && !gSetting_KILLED)
+	{
+		BK4819_DisableDTMF();
+	}
+	else
+	{
+		BK4819_EnableDTMF();
+		InterruptMask |= BK4819_REG_3F_DTMF_5TONE_FOUND;
+	}
+#else
+	BK4819_DisableDTMF();
+
+	if (gCurrentFunction != FUNCTION_TRANSMIT) {
+		BK4819_EnableDTMF();
+		InterruptMask |= BK4819_REG_3F_DTMF_5TONE_FOUND;
+	}
+#endif

 	RADIO_SetupAGC(gRxVfo->Modulation == MODULATION_AM, false);

@@ -938,7 +930,7 @@ void RADIO_SetupAGC(bool listeningAM, bool disable)
 		BK4819_InitAGC(false);
 	}
 	else {
-#ifdef ENABLE_AM_FIX		
+#ifdef ENABLE_AM_FIX
 		if(gSetting_AM_fix) { // if AM fix active lock AGC so AM-fix can do it's job
 			BK4819_SetAGC(0);
 			AM_fix_enable(!disable);
@@ -1042,15 +1034,12 @@ void RADIO_PrepareTX(void)
 #ifdef ENABLE_DTMF_CALLING
 	if (gDTMF_ReplyState == DTMF_REPLY_ANI)
 	{
-		if (gDTMF_CallMode == DTMF_CALL_MODE_DTMF)
-		{
-			gDTMF_IsTx = true;
+		gDTMF_IsTx = gDTMF_CallMode == DTMF_CALL_MODE_DTMF;
+
+		if (gDTMF_IsTx) {
 			gDTMF_CallState = DTMF_CALL_STATE_NONE;
 			gDTMF_TxStopCountdown_500ms = DTMF_txstop_countdown_500ms;
-		}
-		else
-		{
-			gDTMF_IsTx = false;
+		} else {
 			gDTMF_CallState = DTMF_CALL_STATE_CALL_OUT;
 		}
 	}
@@ -1110,20 +1099,17 @@ void RADIO_SendEndOfTransmission(void)
 {
 	if (gEeprom.ROGER == ROGER_MODE_ROGER)
 		BK4819_PlayRoger();
-	else
-	if (gEeprom.ROGER == ROGER_MODE_MDC)
+	else if (gEeprom.ROGER == ROGER_MODE_MDC)
 		BK4819_PlayRogerMDC();

 	if (gCurrentVfo->DTMF_PTT_ID_TX_MODE == PTT_ID_APOLLO)
 		BK4819_PlaySingleTone(2475, 250, 28, gEeprom.DTMF_SIDE_TONE);

-	if (
+	if ((gCurrentVfo->DTMF_PTT_ID_TX_MODE == PTT_ID_TX_DOWN || gCurrentVfo->DTMF_PTT_ID_TX_MODE == PTT_ID_BOTH)
 #ifdef ENABLE_DTMF_CALLING
-		gDTMF_CallState == DTMF_CALL_STATE_NONE &&
+		&& gDTMF_CallState == DTMF_CALL_STATE_NONE
 #endif
-	   (gCurrentVfo->DTMF_PTT_ID_TX_MODE == PTT_ID_TX_DOWN ||
-	    gCurrentVfo->DTMF_PTT_ID_TX_MODE == PTT_ID_BOTH))
-	{	// end-of-tx
+	) {	// end-of-tx
 		if (gEeprom.DTMF_SIDE_TONE)
 		{
 			AUDIO_AudioPathOn();
--- a/radio.h
+++ b/radio.h
@@ -155,7 +155,7 @@ void     RADIO_ConfigureChannel(const unsigned int VFO, const unsigned int confi
 void     RADIO_ConfigureSquelchAndOutputPower(VFO_Info_t *pInfo);
 void     RADIO_ApplyOffset(VFO_Info_t *pInfo);
 void     RADIO_SelectVfos(void);
-void     RADIO_SetupRegisters(bool bSwitchToFunction0);
+void     RADIO_SetupRegisters(bool switchToForeground);
 #ifdef ENABLE_NOAA
 	void RADIO_ConfigureNOAA(void);
 #endif
--- a/settings.c
+++ b/settings.c
@@ -22,7 +22,6 @@
 #endif
 #include "driver/bk4819.h"
 #include "driver/eeprom.h"
-#include "driver/uart.h"
 #include "misc.h"
 #include "settings.h"
 #include "ui/menu.h"
@@ -44,6 +43,7 @@ void SETTINGS_InitEEPROM(void)
 	uint8_t      Data[16];

 	memset(Data, 0, sizeof(Data));
+	memset(&gEeprom, 0, sizeof(gEeprom));

 	// 0E70..0E77
 	EEPROM_ReadBuffer(0x0E70, Data, 8);
@@ -137,7 +137,7 @@ void SETTINGS_InitEEPROM(void)
 	gEeprom.VOICE_PROMPT = (Data[0] < 3) ? Data[0] : VOICE_PROMPT_ENGLISH;
 	#endif
 	#ifdef ENABLE_RSSI_BAR
-		if((Data[1] < 200 && Data[1] > 90) && (Data[2] < Data[1]-9 && Data[2] > 50)) {
+		if((Data[1] < 200 && Data[1] > 90) && (Data[2] < Data[1]-9 && Data[1] < 160  && Data[2] > 50)) {
 			gEeprom.S0_LEVEL = Data[1];
 			gEeprom.S9_LEVEL = Data[2];
 		}
@@ -770,6 +770,9 @@ buf[1] = 0
 #ifdef ENABLE_BLMIN_TMP_OFF
    | (1 << 3)
 #endif
+#ifdef ENABLE_AM_FIX
+    | (1 << 4)
+#endif
 ;
 	EEPROM_WriteBuffer(0x1FF0, buf);
 }
--- a/ui/battery.c
+++ b/ui/battery.c
@@ -21,30 +21,29 @@
 #include "driver/st7565.h"
 #include "functions.h"
 #include "ui/battery.h"
+#include "../misc.h"

 void UI_DrawBattery(uint8_t* bitmap, uint8_t level, uint8_t blink)
 {
 	if (level < 2 && blink == 1) {
 		memset(bitmap, 0, sizeof(BITMAP_BatteryLevel1));
+		return;
 	}
-	else 
-	{
-		memmove(bitmap, BITMAP_BatteryLevel1, sizeof(BITMAP_BatteryLevel1));
-		if (level > 2)
-		{
-			unsigned int i;
-			uint8_t bars = level - 2;
-			if (bars > 4)
-				bars = 4;
-			for (i = 0; i < bars; i++)
-			{
-				#ifndef ENABLE_REVERSE_BAT_SYMBOL
-					memcpy(bitmap + sizeof(BITMAP_BatteryLevel1) - 4 - (i * 3), BITMAP_BatteryLevel, 2);
-				#else
-					memcpy(bitmap + 3 + (i * 3) + 0, BITMAP_BatteryLevel, 2);
-				#endif
-			}
-		}
+
+	memcpy(bitmap, BITMAP_BatteryLevel1, sizeof(BITMAP_BatteryLevel1));
+
+	if (level <= 2) {
+		return;
+	}
+
+	const uint8_t bars = MIN(4, level - 2);
+
+	for (int i = 0; i < bars; i++) {
+#ifndef ENABLE_REVERSE_BAT_SYMBOL
+		memcpy(bitmap + sizeof(BITMAP_BatteryLevel1) - 4 - (i * 3), BITMAP_BatteryLevel, 2);
+#else
+		memcpy(bitmap + 3 + (i * 3) + 0, BITMAP_BatteryLevel, 2);
+#endif
 	}
 }

--- a/ui/helper.c
+++ b/ui/helper.c
@@ -77,8 +77,8 @@ void UI_PrintString(const char *pString, uint8_t Start, uint8_t End, uint8_t Lin
 		if (pString[i] > ' ' && pString[i] < 127)
 		{
 			const unsigned int index = pString[i] - ' ' - 1;
-			memmove(gFrameBuffer[Line + 0] + ofs, &gFontBig[index][0], 7);
-			memmove(gFrameBuffer[Line + 1] + ofs, &gFontBig[index][7], 7);
+			memcpy(gFrameBuffer[Line + 0] + ofs, &gFontBig[index][0], 7);
+			memcpy(gFrameBuffer[Line + 1] + ofs, &gFontBig[index][7], 7);
 		}
 	}
 }
@@ -102,7 +102,7 @@ void UI_PrintStringSmall(const char *pString, uint8_t Start, uint8_t End, uint8_
 		{
 			const unsigned int index = (unsigned int)pString[i] - ' ' - 1;
 			if (index < ARRAY_SIZE(gFontSmall))
-				memmove(pFb + (i * char_spacing) + 1, &gFontSmall[index], char_width);
+				memcpy(pFb + (i * char_spacing) + 1, &gFontSmall[index], char_width);
 		}
 	}
 }
@@ -125,7 +125,7 @@ void UI_PrintStringSmall(const char *pString, uint8_t Start, uint8_t End, uint8_
 			{
 				const unsigned int index = (unsigned int)pString[i] - ' ' - 1;
 				if (index < ARRAY_SIZE(gFontSmallBold))
-					memmove(pFb + (i * char_spacing) + 1, &gFontSmallBold[index], char_width);
+					memcpy(pFb + (i * char_spacing) + 1, &gFontSmallBold[index], char_width);
 			}
 		}
 	}
@@ -142,7 +142,7 @@ void UI_PrintStringSmallBuffer(const char *pString, uint8_t *buffer)
 		{
 			const unsigned int index = (unsigned int)pString[i] - ' ' - 1;
 			if (index < ARRAY_SIZE(gFontSmall))
-				memmove(buffer + (i * char_spacing) + 1, &gFontSmall[index], char_width);
+				memcpy(buffer + (i * char_spacing) + 1, &gFontSmall[index], char_width);
 		}
 	}
 }
--- a/ui/lock.c
+++ b/ui/lock.c
@@ -143,13 +143,14 @@ void UI_DisplayLock(void)
 			gKeyReading0     = Key;
 		}

+#ifdef ENABLE_UART
 		if (UART_IsCommandAvailable())
 		{
 			__disable_irq();
 			UART_HandleCommand();
 			__enable_irq();
 		}
-
+#endif
 		if (gUpdateDisplay)
 		{
 			Render();
--- a/ui/main.c
+++ b/ui/main.c
@@ -19,7 +19,7 @@

 #include "app/chFrScanner.h"
 #include "app/dtmf.h"
-#ifdef ENABLE_AM_FIX_SHOW_DATA
+#ifdef ENABLE_AM_FIX
 	#include "am_fix.h"
 #endif
 #include "bitmaps.h"
@@ -37,8 +37,6 @@
 #include "ui/main.h"
 #include "ui/ui.h"

-#include "debugging.h"
-
 center_line_t center_line = CENTER_LINE_NONE;

 const int8_t dBmCorrTable[7] = {
@@ -350,8 +348,7 @@ void UI_DisplayMain(void)
 					UI_PrintString("ScnRng", 5, 0, line, 8);
 					sprintf(String, "%3u.%05u", gScanRangeStart / 100000, gScanRangeStart % 100000);
 					UI_PrintStringSmall(String, 56, 0, line);
-					uint32_t frq = gEeprom.VfoInfo[vfo_num].pRX->Frequency;
-					sprintf(String, "%3u.%05u", frq / 100000, frq % 100000);
+					sprintf(String, "%3u.%05u", gScanRangeStop / 100000, gScanRangeStop % 100000);
 					UI_PrintStringSmall(String, 56, 0, line + 1);
 				continue;
 			}
@@ -408,14 +405,14 @@ void UI_DisplayMain(void)

 			// highlight the selected/used VFO with a marker
 			if (isMainVFO)
-				memmove(p_line0 + 0, BITMAP_VFO_Default, sizeof(BITMAP_VFO_Default));
+				memcpy(p_line0 + 0, BITMAP_VFO_Default, sizeof(BITMAP_VFO_Default));
 		}
 		else // active TX VFO
 		{	// highlight the selected/used VFO with a marker
 			if (isMainVFO)
-				memmove(p_line0 + 0, BITMAP_VFO_Default, sizeof(BITMAP_VFO_Default));
+				memcpy(p_line0 + 0, BITMAP_VFO_Default, sizeof(BITMAP_VFO_Default));
 			else
-				memmove(p_line0 + 0, BITMAP_VFO_NotDefault, sizeof(BITMAP_VFO_NotDefault));
+				memcpy(p_line0 + 0, BITMAP_VFO_NotDefault, sizeof(BITMAP_VFO_NotDefault));
 		}

 		if (gCurrentFunction == FUNCTION_TRANSMIT)
@@ -537,14 +534,14 @@ void UI_DisplayMain(void)
 				// show the scan list assigment symbols
 				const ChannelAttributes_t att = gMR_ChannelAttributes[gEeprom.ScreenChannel[vfo_num]];
 				if (att.scanlist1)
-					memmove(p_line0 + 113, BITMAP_ScanList1, sizeof(BITMAP_ScanList1));
+					memcpy(p_line0 + 113, BITMAP_ScanList1, sizeof(BITMAP_ScanList1));
 				if (att.scanlist2)
-					memmove(p_line0 + 120, BITMAP_ScanList2, sizeof(BITMAP_ScanList2));
+					memcpy(p_line0 + 120, BITMAP_ScanList2, sizeof(BITMAP_ScanList2));

 				// compander symbol
 #ifndef ENABLE_BIG_FREQ
 				if (att.compander)
-					memmove(p_line0 + 120 + LCD_WIDTH, BITMAP_compand, sizeof(BITMAP_compand));
+					memcpy(p_line0 + 120 + LCD_WIDTH, BITMAP_compand, sizeof(BITMAP_compand));
 #else
 				// TODO:  // find somewhere else to put the symbol
 #endif
@@ -624,9 +621,9 @@ void UI_DisplayMain(void)
 				const ChannelAttributes_t att = gMR_ChannelAttributes[gEeprom.ScreenChannel[vfo_num]];
 				if (att.compander)
 #ifdef ENABLE_BIG_FREQ
-					memmove(p_line0 + 120, BITMAP_compand, sizeof(BITMAP_compand));
+					memcpy(p_line0 + 120, BITMAP_compand, sizeof(BITMAP_compand));
 #else
-					memmove(p_line0 + 120 + LCD_WIDTH, BITMAP_compand, sizeof(BITMAP_compand));
+					memcpy(p_line0 + 120 + LCD_WIDTH, BITMAP_compand, sizeof(BITMAP_compand));
 #endif
 			}
 		}
--- a/ui/menu.c
+++ b/ui/menu.c
@@ -426,7 +426,7 @@ void UI_DisplayMenu(void)

 		// draw the little sub-menu triangle marker
 		if (gIsInSubMenu)
-			memmove(gFrameBuffer[0] + (8 * menu_list_width) + 1, BITMAP_CurrentIndicator, sizeof(BITMAP_CurrentIndicator));
+			memcpy(gFrameBuffer[0] + (8 * menu_list_width) + 1, BITMAP_CurrentIndicator, sizeof(BITMAP_CurrentIndicator));

 		// draw the menu index number/count
 		sprintf(String, "%2u.%u", 1 + gMenuCursor, gMenuListCount);
@@ -488,6 +488,12 @@ void UI_DisplayMenu(void)

 	bool already_printed = false;

+	/* Brightness is set to max in some entries of this menu. Return it to the configured brightness
+	   level the "next" time we enter here.I.e., when we move from one menu to another.
+	   It also has to be set back to max when pressing the Exit key. */
+
+	BACKLIGHT_TurnOn();
+
 	switch (UI_MENU_GetCurrentMenuId())
 	{
 		case MENU_SQL:
@@ -584,7 +590,8 @@ void UI_DisplayMenu(void)

 		case MENU_ABR:
 			strcpy(String, gSubMenu_BACKLIGHT[gSubMenuSelection]);
-			BACKLIGHT_SetBrightness(-1);
+			if(BACKLIGHT_GetBrightness() < 4)
+				BACKLIGHT_SetBrightness(4);
 			break;

 		case MENU_ABR_MIN:
@@ -592,8 +599,8 @@ void UI_DisplayMenu(void)
 			sprintf(String, "%d", gSubMenuSelection);
 			if(gIsInSubMenu)
 				BACKLIGHT_SetBrightness(gSubMenuSelection);
-			else
-				BACKLIGHT_SetBrightness(-1);
+			else if(BACKLIGHT_GetBrightness() < 4)
+				BACKLIGHT_SetBrightness(4);
 			break;	

 		case MENU_AM:
@@ -778,7 +785,7 @@ void UI_DisplayMenu(void)
 			if (!gIsDtmfContactValid)
 				strcpy(String, "NULL");
 			else
-				memmove(String, Contact, 8);
+				memcpy(String, Contact, 8);
 			break;
 #endif

@@ -962,7 +969,7 @@ void UI_DisplayMenu(void)
 	if (UI_MENU_GetCurrentMenuId() == MENU_D_LIST && gIsDtmfContactValid)
 	{
 		Contact[11] = 0;
-		memmove(&gDTMF_ID, Contact + 8, 4);
+		memcpy(&gDTMF_ID, Contact + 8, 4);
 		sprintf(String, "ID:%s", Contact + 8);
 		UI_PrintString(String, menu_item_x1, menu_item_x2, 4, 8);
 	}
Author	SHA1	Message	Date
Krzysiek Egzmont	39eb3e835e	Scan range in spectrum	2023-12-19 18:25:45 +01:00
egzumer	0d66eb8577	Update README.md	2023-12-19 17:37:24 +01:00
Krzysiek Egzmont	13b6bb06b2	Spectrum analyzer, more frequency steps	2023-12-19 03:08:18 +01:00
Krzysiek Egzmont	88f3537af0	9kHz, 20kHz, 200kHz frequency steps added #295	2023-12-18 17:12:33 +01:00
Krzysiek Egzmont	de8c501d65	S0, S9 settings even more constrained	2023-12-18 15:27:31 +01:00
egzumer	76bbaf9442	Update README.md	2023-12-18 15:23:02 +01:00
Krzysiek Egzmont	c4d9cfc895	Add AM-fix build option to EEPROM	2023-12-17 03:47:17 +01:00
Juan Antonio	2a75f8a9be	Refactoring #285 Signed-off-by: Krzysiek Egzmont <egzumer@gmail.com>	2023-12-16 18:34:54 +01:00
Krzysiek Egzmont	e7a21c470f	Makefile Mac build fix #284	2023-12-15 21:08:50 +01:00
Krzysiek Egzmont	fc679c77a4	Fix other backlight menu issues #275	2023-12-15 18:08:40 +01:00
Krzysiek Egzmont	1151cf8667	Backlight brightness tuned down for backlight menu entries #275	2023-12-15 16:54:18 +01:00
Krzysiek Egzmont	af6b542da1	Cleanup	2023-12-15 13:47:07 +01:00
Juan Antonio	cc49a5007c	Fix #275 Backlight does not get back to MAX brightness after exiting backlight menu entries Backlight is set to FULL when interacting with backlight menu entries, but it is not set back to MAX when exiting from those entries. This commit corrects that behaviour.	2023-12-15 13:00:08 +01:00
Juan Antonio	a99d2dd1b1	Fix #272 : Backlight time doubled	2023-12-15 02:56:25 +01:00
Juan Antonio	9dc79ce868	Fix compilation errors when UART is disabled	2023-12-14 22:03:44 +01:00
Juan Antonio	80fa310646	Fix use of wrong ENABLE guard	2023-12-14 22:03:44 +01:00
Juan Antonio	7f5236c44e	Fix compilation errors when FM radio is disabled	2023-12-14 22:03:44 +01:00
Juan Antonio	4b583bf2bd	Assign NOP function when the flashlight is disabled	2023-12-14 22:03:44 +01:00
Krzysiek Egzmont	fa5d3c1594	FIX #269 : battery indicator always at 4 bars	2023-12-14 15:07:33 +01:00
Juan Antonio	1a53586922	Simplify logic in radio.c	2023-12-14 11:11:06 +01:00
Juan Antonio	687b63abb6	Fix signature	2023-12-14 11:11:06 +01:00
Juan Antonio	06f1c651bc	Make LogUart receive a const char* const	2023-12-14 11:11:06 +01:00
Juan Antonio	33e4e3c4e0	Make AUDIO_PlayVoice static as it is only used inside of its module	2023-12-14 11:11:06 +01:00
Krzysiek Egzmont	93b97eff0a	FIX #264 : compilation error	2023-12-14 11:05:46 +01:00
egzumer	8638d37431	Update README.md	2023-12-13 19:19:29 +01:00
Krzysiek Egzmont	716e9e23b8	README.md - add Github Codespace building manual	2023-12-13 19:04:29 +01:00
Juan Antonio	d0ae34f9b4	Replace memmove by memcpy	2023-12-13 16:07:07 +01:00
Juan Antonio	bd17aea72b	Make SETTINGS_InitEEPROM zero struct gEeprom	2023-12-13 16:07:07 +01:00
Juan Antonio	34d688b101	Logic simplification. Replace memmove by memcpy	2023-12-13 16:07:07 +01:00
Juan Antonio	8c7f736797	Simplify come battery logic	2023-12-13 16:07:07 +01:00
Juan Antonio	a19579a888	Make makefile options settable from envars	2023-12-13 16:07:07 +01:00